Answer:
9 (m+5)-3(m-2)=8m+31
9m+45 - (3m + 6)= 8m+31
9m+45-3m-6=8m+31
45-6+31=8m-9m+3m
70=2m
m=70/2
Therefore m = 35
Hope u understood.............
m = 10
Step-by-step explanation:
9(m+5) - 3(m-2) = 8m+31
(9m+45) - (3m-6) = 8m+31
9m+45-3m+6 = 8m+31
9m-3m+45+6 = 8m+31
6m+51 = 8m+31
8m+31 = 6m+51
8m = 6m+51-31
8m+6m = 51-31
2m = 20
m = 20÷2
