Do each equation individually and compare if they are the same end answer in each question. which ever one is unequal than that is the answer
m - 9 = 42
42 is our final answer so that should be by itself.
If something is being decreased by 9, that means that we are taking away 9 from something so it should be m - 9.
MAB = 110
mACB = 360 - 110 = 250
hope it helps
