How do you evaluate #-8+ - 7+ - 7\times - 2#?

1 Answer
David Drayer
Mar 14, 2018

Use the order of operation PEMDAS

Explanation:

Think about it this way
If you get hurt in PE call an MD ASap

PE = parenthesis and exponents do this first.
MD a doctor is one person so do Multiplication and Division as one doing them at the same time working from left to right
ASap as soon as possible is one time so do Addition and Subtraction at the same time working from left to right.

There is one multiplication operation do this first.

#-8 + -7 + -7 xx -2 = -8 + -7 + 14 #

Now do the addition and subtraction working from left to right

# -8 + -7 + 14 = -15 + 14# Continuing gives

# -15 + 14 = -1#

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