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8x-2=4x+30
8x-4x=30+2
4x=32/4
x=8
x-(x+3)=2(x-1.5)
x-x-3=2x-3
-2x=-3+3
-2x=0/(-2)
x=0
5(x-2)+7=11x-27
5x-10+7=11x-27
5x-11x=-27+10-7
-6x=-24/(-6)
x=4
a)
8x - 2 = 4x + 30
8x - 4x = 30 + 2
4x = 32 /:4
x = 8
b)
x - (x + 3) = 2 · (x - 1,5)
x - x - 3 = 2x - 3
- 2x = - 3 + 3
- 2x = 0 /:(2)
x = 0
c)
5 · (x - 2) + 7 = 11x - 27
5x - 10 + 7 = 11x - 27
5x - 3 = 11x - 27
5x - 11x = - 27 + 3
- 6x = - 24 /:(-6)
x = 4
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8x-2=4x+30
8x-4x=30+2
4x=32/4
x=8
x-(x+3)=2(x-1.5)
x-x-3=2x-3
-2x=-3+3
-2x=0/(-2)
x=0
5(x-2)+7=11x-27
5x-10+7=11x-27
5x-11x=-27+10-7
-6x=-24/(-6)
x=4
a)
8x - 2 = 4x + 30
8x - 4x = 30 + 2
4x = 32 /:4
x = 8
b)
x - (x + 3) = 2 · (x - 1,5)
x - x - 3 = 2x - 3
- 2x = - 3 + 3
- 2x = 0 /:(2)
x = 0
c)
5 · (x - 2) + 7 = 11x - 27
5x - 10 + 7 = 11x - 27
5x - 3 = 11x - 27
5x - 11x = - 27 + 3
- 6x = - 24 /:(-6)
x = 4