Question

12m + 3 ( m - 1 ) = -2 ( m + 1 ) + 12 ??

Answer 1

12m+3m-3 = -2m-2+12

15m+2m = 10+3

17m = 13

 m= 13/17 → Resposta:)

Answer 2

12m+3m-3=-2m+(-2)+12
\. /
15m-3=-2m+(-2)+12


15m+2m=(-2)+12+3

17m=(-2)+12+3

17m=13

m=17
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13