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True or False. To simplify 3 +5(-7), first find the sum 3 +5. Explain your answer.

User Will Brode
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1 Answer

4 votes

The answer is False.

To simplify the expression:

3 + 5*(-7)

We need to follow the PEMDAS rule, that is, first, we have to solve operations in parentheses; then, we solve those related to exponents, following by multiplications, divisions, and finally additions and subtractions.

To simplify:

3 + 5*(-7)

We need to find, first, the multiplication of 5 times -7 or:

5 * (-7) = -35

Then, we sum this result to 3

3 + (-35) =

3 - 35 =

-32

The final result is -32.

User Rockinfreakshow
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3.4k points