Question

Solve the formula −3x−3y=21 for y.

Answer 1

Hi there!

How are you?

Answer:

`\boxed{y = - x - 7}`

Explanation:

⇒ First add 3x to both sides.

`-3x - 3y + 3x = 21 + 3x`

`-3y = 3x + 21`

⇒ Second divide both sides by -3.

`(-3y)/(-3) = (3x + 21)/(-3)`

`y = - x - 7`

Have good day/night!

Answer 2

y=-7-x

Explanation:

-3y=21+3x y=21/-3+3x/-3 y=-7-x