Question

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

Answer 1

$12m + 3(m - 1) = - 2(m + 1) + 12 \\ 12m + 3m - 3 = - 2m - 2 + 12 \\ 15m - 3 = - 2m + 10 \\ 15m + 2m = 10 + 3 \\ 17m = 13 \\ m = \frac{13}{17}$

Answer 2

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

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

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

17m=-2+15

17m=13

m=13/17