Answer:
m =1
Step-by-step explanation:
4(m-1) - 3(m-5) =12
4m -4 -3m + 15 = 12
4m - 3m = 12-15 +4
m = 1
4m-4 - 3m+15 =12
4m-3m +15-4 = 12
m +11 = 12
m = 12-11
