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1. Rozwiąż równania
1) -8(x+2)+3(x+5)=-2(2x+3)+4(2x-1)
2) 6(4-x)+5(2x-5)=4(x-1)-3)(4-x)
3) (4-2x)-(x+3)=(x-5)+(-3-x)
4) (3-2x)+(3x+4)=-(3-2x)+(5x+4)
5) -(x+3)+(2x-1)=(1+4x)+(3+x)
6) -(x+3)-(2x+8)=(-3-2x)+(2x+1)
7) (3-2x)-(x+4)-(2x+5)=(3x-4)-(5x+7)
8) (4-x)-(2x+3)+(x-4)=-(2x-3)-(x+7)
9) (4x-5)+(x-7)-(2x-8)=(-3x+4)-(x-6)
10) -(4-2x)-(2x+4)=(3x-1)+(2x-5)-(7-3x)
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1) -8(x+2)+3(x+5)=-2(2x+3)+4(2x-1)
-8x-16+3x+15=-4x-6+8x-4
-5x-1=4x-10
-9x=-9 //:(-9)
x=1
2) 6(4-x)+5(2x-5)=4(x-1)-3)(4-x)
24-6x+10x-25=4x-4-12+3x
4x-1=7x-16
-3x=-15 //:(-3)
x=5
3) (4-2x)-(x+3)=(x-5)+(-3-x)
4-2x-x-3=x-5-3-x
-3x+1=-8
-3x=-9 //:(-3)
x=3
4) (3-2x)+(3x+4)=-(3-2x)+(5x+4)
3-2x+3x+4=-3+2x+5x+4
x+7=7x+1
-6x=-6 //:(-6)
x=1
5) -(x+3)+(2x-1)=(1+4x)+(3+x)
-x-3+2x-1=1+4x+3+x
x-4=5x+4
-4x=8 //:(-4)
x=-2
6) -(x+3)-(2x+8)=(-3-2x)+(2x+1)
-x-3-2x-8=-3-2x+2x+1
-3x-11=-2
-3x=9 //:(-3)
x=-3
7) (3-2x)-(x+4)-(2x+5)=(3x-4)-(5x+7)
3-2x-x-4-2x-5=3x-4-5x-7
-5x-6=-2x-11
-3x=-5 //:(-3)
8) (4-x)-(2x+3)+(x-4)=-(2x-3)-(x+7)
4-x-2x-3+x-4=-2x+3-x-7
-2x-3=-3x-4
x=-1
9) (4x-5)+(x-7)-(2x-8)=(-3x+4)-(x-6)
4x-5+x-7-2x+8=-3x+4-x+6
3x-4=-4x+10
7x=14 //:7
x=2
10) -(4-2x)-(2x+4)=(3x-1)+(2x-5)-(7-3x)
-4+2x-2x-4=3x-1+2x-5-7+3x
-8=8x-13
-8x=-5 //:(-8)
1.
-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
2.
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
3.
(4-2x)-(x+3) = (x-5)+(-3-x)
4-2x-x-3 = x-5-3-x
-3x+1 = -8
-3x = -8-1
-3x = -9 |:(-3)
x = 3
4.
(3-2x)+(3x+4) = -(3-2x)+(5x+4)
3-2x+3x+4 = -3+2x+5x+4
x+7 = 7x+1
x-7x = 1-7
-6x = -6 |:(-6)
x = 1
5.
-(x+3)+(2x-1) = (1+4x)+(3+x)
-x-3+2x-1 = 1+4x+3+x
x-4 = 5x+4
x-5x = 4+4
-4x = 8 |:(-4)
x = -2
6.
-(x+3)-(2x+8) = (-3-2x)+(2x+1)
-x-3-2x-8 = -3-2x+2x+1
-3x-11 = -2
-3x = -2+11
-3x = 9 |:(-3)
x = -3
7.
(3-2x)-(x+4)-(2x+5) = (3x-4)-(5x+7)
3-2x-x-4-2x-5 = 3x-4-5x-7
-5x-6 = -2x-11
-5x+2x = -11+6
-3x = -5 |:(-3)
x = 1i2/3
8.
(4-x)-(2x+3)+(x-4) = -(2x-3)-(x+7)
4-x-2x-3+x-4 = -2x+3-x-7
-2x-3 = -3x-4
-2x+3x = -4+3
x = -1
9.
(4x-5)+(x-7)-(2x-8) = (-3x+4)-(x-6)
4x-5+x-7-2x+8 = -3x+4-x+6
3x-4 = -4x+10
3x+4x = 10+4
7x = 14 |:7
x = 2
10.
-(4-2x)-(2x+4) = (3x-1)+(2x-5)-(7-3x)
-4+2x-2x-4 = 3x-1+2x-5-7+3x
-8 = 8x-13
8x = -8+13
8x = 5 |:8
x = 5/8