Answer:
m=14
Step-by-step explanation:
start with your parenthesis and multiply 9 to m-3 which makes that 9m-27+3m=7m+43
add your m together making that 12m-27=7m+43
add 27 to both sides equalling 12m=7m+70
subtract 7m from both sides resulting in 5m=70
divide both sides by 5 equalling m=14
