1 rozwiąż równania:
a)4x-3+2x=8x-3
b)3-5y-8y+4+4y=25
c)5x-3+2x=4x+9-x
d)4y-18+7y=3+9y-15
e) -3(x-2)=-12
f)4(x-2)-3(x-1)=2(x+6)
g)x-3=2(2-3x)+3(x-5)
h)8(3z-2)-13z=5(12-3z)+7z
2 rozwiąż nierówności:
a)4x-5>3x-1
b)3y+7+y<2y+9
c)3x+5≥5(x-2)-1
d)5x+2(3x-1)≥3(4x-3)+2x
f)2x+3(x-1)<9(x+1)+x
g)4(x-1)+2(3-2x)≥6-x
Daje naj tylko proszę nie pisać samych wyników tylko całe działanie jak to zrobiliście;]
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a)4x-3+2x=8x-3
6x - 8x = -3 + 3
-2x = 0 /:(-2)
x = 0
b)3-5y-8y+4+4y=25
-9y = 25 -7
-9y = 18 /:-9
y = -2
c)5x-3+2x=4x+9-x
7x- 3x = 9 + 3
4x = 12 /:4
x = 3
d)4y-18+7y=3+9y-15
11y - 9y = -12 + 18
2y = 6 /:2
y = 3
e) -3(x-2)=-12
-3x + 6 = -12
-3x = -18 /:(-3)
x = 6
f)4(x-2)-3(x-1)=2(x+6)
4x - 8 - 3x + 3 = 2x + 12
x - 2x = 12 +5
-x = 17
x = -17
g)x-3=2(2-3x)+3(x-5)
x - 3 = 4 - 6x + 3x - 15
x + 3x = -11 + 3
4x = -8 /:4
x = -2
h)8(3z-2)-13z=5(12-3z)+7z
24z - 16 - 13z = 60 - 15z + 7z
11z + 8z = 60 +16
19z = 76 /:19
z = 4
a)4x-5>3x-1
4x - 3x > -1 +5
x > 4
b)3y+7+y<2y+9
4y - 2y < 9 - 7
2y < 2 /:2
y < 1
c)3x+5≥5(x-2)-1
3x + 5 ≥ 5x - 10 - 1
3x - 5x ≥ -11 - 5
-2x ≥ -16 /:(-2)
x ≤ 8
d)5x+2(3x-1)≥3(4x-3)+2x
5x + 6x - 2 ≥ 12x - 9 + 2x
11x - 14x ≥ -9 + 2
-3x ≥ -7 /:(-3)
x ≤ 7/3
x ≤ 2 1/3
f)2x+3(x-1)<9(x+1)+x
2x + 3x - 3 < 9x + 9 + x
5x - 10x < 9 + 3
-5x < 12 /: (-5)
x > -12/5
x > - 2 2/5
g)4(x-1)+2(3-2x)≥6-x
4x - 4 + 6 - 4x ≥ 6 - x
x ≥ 6 -2
x ≥ 4
1.a) 4x-3+2x=8x-3
4x+2x-8x=-3+3
-2x=0/:(-2)
x=0
b) 3-5y-8y+4+4y=25
-5y-8y+4y=25-3-4
-9y=18/:(-9)
y=-2
c)5x-3+2x=4x+9-x
5x+2x-4x+x=9+3-5
4x=7/:4
x=7/4=1 3/4= 1,75
d)4y-18+7y=3+9y-15
4y+7y-9y=18+3-15
2y=6/:2
y=3
e)-3(x-2)=-12
-3x+6=-12
-3x=-18/:(-3)
x=6
f)4(x-2)-3(x-1)=2(x+6)
4x-8-3x+3=2x+12
4x-3x-2x=12-3+8
-x=17/:(-1)
x=-17
g)x-3=2(2-3x)+3(x-5)
x-3=4-6x+3x-15
x+6x-3x=-15+3+4
4x=-8/:4
x=-2
h)8(3z-2)-13z=5(12-3z)=7z
24z-16-13z=60-15z+7z
24z-13z=15z-7z=60+16
19z=76/:19
z=4
2.a)4x-5>3x-1
4x-3x=5-1
x=5
b) 3y+7+y<2y+9
3y+y-2y=9-7
2y=2/:2
y=1
c)3x+5>5(x-2)-1
3x+5>5x-10-1
3x-5x=-10-1-5
-2x=-16/:(-2)
x=8
d)5x+2(3x-1)>3(4x-3)+2x
5x+6x-2>12x-9+2x
5x+6x-12x-2x=2-9
-3x=-7/:(-3)
x=7/3=1,75
f)2x+3(x-1)<99x+1)+x
2x+3x-3<9x+9+x
2x+3x-9x-x=3+9
-4x=12/:(-4)
x=-3
g)4(x-1)+2(3-2x)>6-x
4x-4+6-4x>6-x
4x-4x+x=6-6+4
x=4
PROSZE O NAJ ;)