Respuesta :

kosala1478

Step-by-step explanation:

-7(y-1)= 21

-7y+7=21

-7y=21-7

-7y=14

divide by-7

y=-2

Answer:

y = - 2

Step-by-step explanation:

Given

- 7(y - 1) = 21 ( divide both sides by the multiplier - 7 )

y - 1 = - 3 ( add 1 to both sides )

y = - 2