2 Answers

Yuki Nishijima · Answer 1 · 2021-07-19T02:23:41+0000

Answer:

-3z +2

Explanation:

A expression in terms of z is given to us and we need to simplify out the given expression . The give an expression to us is ,

$\implies (5z + 9 ) - ( 8z + 7 )$

Recall that , + × - = - . We have ,

$\implies 5z + 9 - 8z - 7$

Combining the like terms and simplifying ,

$\implies 5z - 8z - 7 +9 \\\\\implies \underline{\underline{ -3z +2 }}$

Hence the last option is correct .

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