Question

Zad1. Rozwiąż równania
a)(3-2x)-(x+4)-)2x+5)=(3x-4)-(5x-7)
b)(4-x)-(2x+3)+(x-4)=-(2x-3)-(x+7)
c)(4x-5)+(x-7)-(2x-8)=(3x+4)-(x-6)
d)-(4-2x)-(2x+4)=(3x-1)+(2x-5)-(7-3x)

zad2.Rozwiąż równania
a)3(x-4)-4(2x-7)=2(x=5)
b)2(2-3)+3(4-x)=-(x+1)
c)2(x-3)-4(3+x)=-3(x+2)+2(2x-1)
d)6(x+1)+3(2-x)=2(2x-1)-(4-x)

zad3. Rozwiąż równania
a)2(x-7)-3(x+2)=4(x+3)+2(x-9)
b)-3(x+6)-6(2x+8)=-2(4-x)+9(x+8)
c)-8(x+2)+3(x+5)=-2(2x+3)+4(2x-1)
d)6(4-x)+5(2x-5)=4(x-1)-3(4-x)

zad4. Rozwiąż równania
a)3(3-x)+2x=8-2(x-1)
b)4x+5-(3x+6)=2(2+x)-4
c)4-5(3-x)=-x-(3-2x)
d)x-(7+2x)=2(x-1)+1

Answer 1

Zad1. Rozwiąż równania
a)(3-2x)-(x+4)-)2x+5)=(3x-4)-(5x-7)
3-2x-x+4-2x-5 = 3x-4-5x+7
2-5x = -2x+3
-5x+2x = 3-2
-3x=1/-3
x=-1/3 (ułamek)

b)(4-x)-(2x+3)+(x-4)=-(2x-3)-(x+7)
4-x-2x-3+x-4 = -2x+3-x-7
-3-2x=-3x-4
-2x+3x=-4+3
x=-1


c)(4x-5)+(x-7)-(2x-8)=(3x+4)-(x-6)

4x-5+x-7-2x+8=3x+4-x+6
3x-12=2x+10
3x-2x=10+12
x=22

d)-(4-2x)-(2x+4)=(3x-1)+(2x-5)-(7-3x)

-4+2x-2x-4=3x-1+2x-5-7+3x
-8=8x-13
-8+13=8x
5=8x/8
x=5/8 (ułamek)


zad2.Rozwiąż równania
a)3(x-4)-4(2x-7)=2(x=5)
3x-12-8x+28=2x+10
-5x+16=2x+10
-5x-2x=10-16
-7x=-6/(-7)
x= 6/7 (ułamek)

b)2(2-3)+3(4-x)=-(x+1)
4-6+12-3x=-x-1
10-3x=-x-1
-3x+x=-1-10
-2x=-11/(-2)
x=11/2
x= 5 całych i 1/2 ( pięć całych i jedna druga w ulamku)



c)2(x-3)-4(3+x)=-3(x+2)+2(2x-1)
2x-6-12-4x=-3x-6+4x-2
-2x-18=x-8
-2x-x=-8+18
-3x=10/:(-3)
x= - 10/3
x= - 3 cale i 1/3 jedna trzecia

d)6(x+1)+3(2-x)=2(2x-1)-(4-x)
6x+6+6-3x=4x-2-4+x
3x+12=5x-6
3x-5x=-6-12
-2x=-18/(-2)
x= 9

zad3. Rozwiąż równania
a)2(x-7)-3(x+2)=4(x+3)+2(x-9)
2x-14-3x-6=4x+12+2x-18
-x-20=6x-6
-x-6x=-6+20
-7x=14/(-7)
x= -2

b)-3(x+6)-6(2x+8)=-2(4-x)+9(x+8)
-3x-18-12x-48=-8+2x+9x+72
-15x-66=11x+64
-15x-11x=64+66
-26x= 130/(-26)
x=-5


c)-8(x+2)+3(x+5)=-2(2x+3)+4(2x-1)
-8x-16+3x+15=-4x-6+8x-4
-5x-1= 4x-10
-5x-4x=-10+1
-9x= -9/(-9)
x=1

d)6(4-x)+5(2x-5)=4(x-1)-3(4-x)
24-6x+10x-25=4x-4-12+3x
4x-1=7x-16
4x-7x=-16+1
3x=-15/:3
x=-5

zad4. Rozwiąż równania
a)3(3-x)+2x=8-2(x-1)

9-3x+2x= 8-2x+2
-x+2x=2-9
x=-7


b)4x+5-(3x+6)=2(2+x)-4
4x+5-3x-6=4+2x-4
x-2x=1
-x=1/(-1)
x=-1

c)4-5(3-x)=-x-(3-2x)
4-15+5x=-x-3+2x
5x-x=-3+11
6x=8/6
x=8/6
x=1cala i 1/3 jedna trzecia (ulamek)


d)x-(7+2x)=2(x-1)+1
x-7-2x=2x-2+1
-x-2x=-1+7
-3x=6/(-3)
x=-2



proszę pracochlonne ale zrobilam licze na naj

Answer 2

1.
a)(3-2x)-(x+4)-(2x+5)=(3x-4)-(5x-7)
3 - 2x - x - 4 - 2x - 5 = 3x - 4 - 5x + 7
- 2x - x - 2x - 3x + 5x = -4 + 7 - 3 + 4 + 5
-3x = 9
x = -3

b)(4-x)-(2x+3)+(x-4)=-(2x-3)-(x+7)
4 - x - 2x - 3 + x - 4 = -2x + 3 -x -7
-3 - 2x = -3x - 4
- 2x + 3x = -4 + 3
x = -1

c)(4x-5)+(x-7)-(2x-8)=(3x+4)-(x-6)
4x - 5 + x - 7 - 2x + 8 = 3x + 4 - x + 6
3x - 4 = 2x + 10
3x - 2x = 10+ 4
x = 14

d)-(4-2x)-(2x+4)=(3x-1)+(2x-5)-(7-3x)
-4 + 2x - 2x - 4 = 3x - 1 + 2x - 5 - 7 + 3x
- 8 = 8x - 10
- 8x = - 2
x = 0,25

2.
a)3(x-4)-4(2x-7)=2(x+5)
3x - 12 - 8x + 28 = 2x + 10
- 5x + 16 = 2x + 10
- 5x - 2x = 10 - 16
- 7x = - 6
x= 6/7

b) 2(2-3)+3(4-x)=-(x+1)
4 - 6 + 12 - 3x = -x - 1
-2x = -11
x = 5,5

c)2(x-3)-4(3+x)=-3(x+2)+2(2x-1)
2x - 6 - 12 - 4x = -3x - 6 + 4x - 2
x = 10

d) 6(x+1)+3(2-x)=2(2x-1)-(4-x)
6x + 6 + 6 - 3x = 4x - 2 - 4 + x
6x - 3x - 4x - x= -2 - 4 - 6 - 6
- 2x = - 18
x = 9

3.
a) 2(x-7)-3(x+2)=4(x+3)+2(x-9)
2x - 14 - 3x + 6 = 4x + 12 + 2x - 18
- 7x = 2
x = - 2/7

b) -3(x+6)-6(2x+8)=-2(4-x)+9(x+8)
-3x - 18 - 12x - 48 = -8 + 2x + 9x + 72
- 26x = 120
x = 4 i 6/13

c)-8(x+2)+3(x+5)=-2(2x+3)+4(2x-1)
- 8x - 16 + 3x + 15 = -4x - 6 + 8x - 4
7x = - 9
x = - 9/7
x = - 1 i 2/7

d) 6(4-x)+5(2x-5)=4(x-1)-3(4-x)
24 - 6x + 10x - 25 = 4x - 4 - 12 + 3x
- 11x = 15
x = - 15/11
x= - 1 i 4/11

4.
a)3(3-x)+2x=8-2(x-1)
9 - 3x + 2x = 8 - 2x + 2
x = 1

b) 4x+5-(3x+6)=2(2+x)-4
4x + 5 - 3x - 6 = 4 + 2x - 4
-x = 1
x = - 1

c) 4-5(3-x)=-x-(3-2x)
4 - 15 + 5x = - x - 3 + 2x
4x = 8
x= 2

d)x-(7+2x)=2(x-1)+1
x - 7 - 2x = 2x - 2 + 1
- 3x = 6
x = - 2

Pozdrawiam ;)

Answer 3

Zadanie 1
a) (3-2x)-(x+4)-(2x+5)=(3x-4)-(5x-7)
3-2x-x-4-2x-5=3x-4-5x+7
-2x-x-2x-3x+5x=-4+7-3+4+5
-3x=9/:(-3)
x=-3

b)(4-x)-(2x+3)+(x-4)=-(2x-3)-(x+7)
4-x-2x-3+x-4=-2x+3-x-7
-x-2x+x+x+2x=3-7-4+4
x=-4

c)(4x-5)+(x-7)-(2x-8)=(3x+4)-(x-6)
4x-5+x-7-2x+8=3x+4-x+6
4x+x-2x-3x+x=4+6+5+7-8
x=14

d)-(4-2x)-(2x+4)=(3x-1)+(2x-5)-(7-3x)
-4+2x-2x-4=3x-1+2x-5-7+3x
2x-2x-3x-2x-3x=-1-5-7+4+4
-8x=5/:(-8)
x=-5/8

Zadanie 2

a)3(x-4)-4(2x-7)=2(x=5)
3x-12-8x+28=2x-10
3x-8x-2x=-10+12-28
-7x=26/:(-7)
x=-3 5/7

b)2(2-3)+3(4-x)=-(x+1)
4-6+12-3x=-x-1
x-3x=-1-4+6-12
-2x=-11/:(-2)
x=5,5

c)2(x-3)-4(3+x)=-3(x+2)+2(2x-1)
2x-6-12-4x=-3x-6+4x-2
2x-4x+3x-4x=-6-2+6+12
-3x=10/:(-3)
x=-3 1/3

d)6(x+1)+3(2-x)=2(2x-1)-(4-x)
6x+6+6-3x=4x-2-4+x
6x-3x-4x-x=-2-4-6-6
-2x=-18/:(-2)
x=9

Zadanie 3

a)2(x-7)-3(x+2)=4(x+3)+2(x-9)
2x-14-3x-6=4x+12+2x-18
2x-3x-4x-2x=14+6+12-18
-7x=14/:(-7)
x=-2

b)-3(x+6)-6(2x+8)=-2(4-x)+9(x+8)
-3x-18-12x-48=-8+2x+9x+72
-3x-12x-2x-9x=18+48+72
-26x=138/:(-26)
x=-5 8/26

c)-8(x+2)+3(x+5)=-2(2x+3)+4(2x-1)
-8x-16+3x+15=-4x-6+8x-4
-8x+3x+4x-8x=-6-4+16-15
-9x=-9/:(-9)
x=1

d)6(4-x)+5(2x-5)=4(x-1)-3(4-x)
24-6x+10x-25=4x-4-12+3x
-6x+10x-4x-3x=-4-12-24+25
-3x=-15/:(-3)
x=5

Zadanie 4

a)3(3-x)+2x=8-2(x-1)
9-3x+2x=8-2x+2
-3x+2x-2x=8+2-9
-3x=1/:(-3)
x=-1/3

b)4x+5-(3x+6)=2(2+x)-4
4x+5-3x-6=4+2x-4
4x-3x-2x=4-4-5+6
-x=-1
x=1

c)4-5(3-x)=-x-(3-2x)
4-15-5x=-x-3+2x
-5x+x-2x=-3-4+15
-6x=8/:(-6)
x=- 8/6
x=-1 1/3

d)x-(7+2x)=2(x-1)+1
x-7-2x=2x-2+1
x-2x-2x=-2+1+7
3x=6/:3
x=2

Pozdrawiam ;)