7(-3( m-2)- m)-12=4(5-3m)-4

Question

7(-3( m-2)- m)-12=4(5-3m)-4

Answer 1

7(-3m+6-m)-12=20-12m-4
-21m+42-7m-12=20-12m-4
-21m-7m+12m=20-4-42+12
-16m=-14
m=-14:-16
m=0,875