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2010-03-09T17:19:48+01:00
A) -3x = 2x - 10
-3x-2x = -10
-5x = -10 /(-5)
x = 2

b) 2(x+1) = x
2x + 2 = x
2x - x = -2
x = -2
2010-03-09T17:19:49+01:00
A)-5x=-10 /-5
x=2
b) 2x+2=x
x=-2
2010-03-09T17:22:56+01:00
A) -3x = 2x - 10 / -2x
5x = -10 / :5
x = 2



b) 2(x+1) = x
2x + 2 = x / -2x
2 = - 2x / :2
1 = x