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2010-03-16T21:51:25+01:00
4(2x+3)-5x=-3
8x+12-5x=-3 /-12
8x-5x=-3-12
3x = -15 /3
x=-5

-4x-3(2x+1)=7
-4x-6x-3=7 /+3
-10x=10 / (-10)
x= -1

2010-03-16T21:52:02+01:00
4(2x+3)-5x=-3
8x+12-5x=-3
3x=-3-12
3x=-15/3
x=-5


-4x-3(2x+1)=7
-4x-6x-3=7
-10x=7+3
-10x=10/(-10)
x=-1

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