bianca1324
bianca1324
02-11-2016
Mathematics
contestada
3(x+7)-12=4(2x-7)
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MohamedSharif
MohamedSharif
13-11-2016
3x+21-12=8x-28
collect the like terms
3x-8x=-28(21-12=9)
-5x=-28-9
-5x=-37
x=7.4
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