Question

Yea yea yea yea yea help please i have a zero in this class lol

Answer 1

Answer:

-3z +2

Step-by-step 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 .

Answer 2

Answer:

D. -3z+2

Step-by-step explanation:

Steps:

Remove parentheses: (a) = a

= 5z+9-(8z+7)

....

Simplify

5z+9-8z-7: -3z+2