My question is in the picture I tried to multiply -7 on both sides and got -147 I don't know if it's correct or if it's the right way to do it.

My question is in the picture I tried to multiply 7 on both sides and got 147 I dont know if its correct or if its the right way to do it class=

Respuesta :

Answer:

-3

Step-by-step explanation:

-7b = 21

/ -7     / -7

b = -3

Answer:

-3

Step-by-step explanation:

Hope this helped have an amazing day!