a)
3x-3(2x-2) = 3(x-2)
3x-3*2x-3*(-2) = 3*x-3*2
3x-6x+6 = 3x-6
-3x+6 = 3x-6
-3x-3x = -6-6
-6x = -12 |:(-6)
x = 2
b)
2x-(8-x) = -2(x-5)
2x-8-(-x) = -2*x-2*(-5)
2x-8+x = -2x+10
3x-8 = -2x+10
3x+2x = 10+8
5x = 18 |:5
x = 3,6
c)
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a)
3x-3(2x-2) = 3(x-2)
3x-3*2x-3*(-2) = 3*x-3*2
3x-6x+6 = 3x-6
-3x+6 = 3x-6
-3x-3x = -6-6
-6x = -12 |:(-6)
x = 2
b)
2x-(8-x) = -2(x-5)
2x-8-(-x) = -2*x-2*(-5)
2x-8+x = -2x+10
3x-8 = -2x+10
3x+2x = 10+8
5x = 18 |:5
x = 3,6
c)