−75 = −5d − 150 d= show me your work

Hello there!

Explanation:

↓↓↓↓↓↓↓↓↓↓↓↓↓

First you had to switch sides.

Then you add by 150 from both sides of the equation.

Simplify

Divide by -5 from both sides of the equation.

Simplify it should be the correct answer.

Answer⇒⇒⇒⇒⇒⇒⇒d=-15

Hope this helps!

Thank you for posting your question at here on .

Have a great day!

-Charlie

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!