What is -8x-9=-21, can someone work out the problem and show me what they did to get there answer so i can understand it?

- 8x - 9 = - 21

Add 9 to both sides:

- 8x = - 12

Divide both sides by - 8:

x = -12/-8

x = -3/-2

x = 3/2 OR 1.5

Hope this answer helps :)

To do this equation first:

Add 9 to both sides so you can leave -8x alone.

-8x-9+9=-21+9

-8x=-12

Divide both sides by 8:

-8x/8=-12/8

x=3/2

x=3/2

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.