## Elementary Algebra

$-72$
Recall, in order to solve problems involving order of operations, we use the PEMDAS rule. First Priority: P - parentheses and other grouping symbols Second Priority: E - exponents Third Priority: M/D - Multiplication or division, whichever comes first from the left to the right Fourth Priority: A/S - Addition or subtraction, whichever comes first from the left to the right Apply the exponents first to obtain: $=(-3)(-3)(-3) -3(3)-6(6) \\=-27- 9 -36$ Subtract next, and then add last to obtain: $=-36 -36 \\=-72$