Question

Write an expression for the sequence of operations described below.

add 3 and m, then subtract 7 from the result
Do not simplify any part of the expression.

Answer 1

The answer is (3 + m) - 7
7 is outside of the brackets because the problem states to subtract 7 after you add 3 and m, so to go according to PEMDAS we have to place 3 and m inside the brackets to tell us to do the addition first.

Answer 2

q + 10 - r

Explanation:

add q and 10 = q + 10

then subtract r from the result = q + 10 - r