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Evaluate this expression
(-7--9)*(8+2)

User Ptd
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1 Answer

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Before we get started, it is good to remember PEMDAS - the acronym that tells you the order to carry out equations.

P = parentheses
E = exponents
M = multiplication
D = division
A = addition
S = subtraction

Knowing this, we should start by doing the equations within each parentheses.


(-7 - -9) *(8 + 2)

(2) *(10)

So we did the addition and subtraction pieces within each group leaving us with the above equation. Now let's multiply:


(2)*(10) = 20

20 is the answer.
User Paul Webster
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