Question

Equaçao=
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 + 2m = 3 + 12 - 2 <=>
<=> 17 m = 13 <=>
<=> m = 13/17

Answer 2

12m+3(m-1)=-2(m+1)+12
12m+3m-3=-2m-2+12
12m+3m+2m=12-2+3
17m=13
m=13/17
Resposta: 13/17