13414
13414
30-08-2016
Mathematics
contestada
2(4x+2)=4x−12(x−1)2(4x+2)=4x−12(x−1)
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dalendrk
dalendrk
30-08-2016
2(4x + 2) = 4x - 12(x - 1) |use distributive property: a(b +/- c) = ab +/- ac
8x + 4 = 4x - 12x + 12
8x + 4 = -8x + 12 |subtract 4 from both sides
8x = -8x + 8 |add 8x to both sides
16x = 8 |divide both sides by 16
x = 0.5
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