Question

1. evaluate.

a) $(-72)\div8 - 2(4)$
b) $(8 + 6 - 2)\div(-3)$

Explanation:

Step1: Do division and multiplication first

$(-72)\div8 = -9$, $2(4)=8$

Step2: Subtract the results

$-9 - 8 = -17$
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Step1: Simplify inside parentheses first

$8+6-2=12$

Step2: Divide by the negative number

$12\div(-3) = -4$

Answer:

a) $-17$
b) $-4$