Answer:
m = 14
Step-by-step explanation:
9(m - 3) + 3m = 7m + 43 ← distribute parenthesis and simplify left side
9m - 27 + 3m = 7m + 43
12m - 27 = 7m + 43 ( subtract 7m from both sides )
5m - 27 = 43 ( add 27 to both sides )
5m = 70 ( divide both sides by 5 )
m = 14
