Question

5x - 2y = 30 if 8 = x

Answer 1

If x = 8 then y = 5

Explanation:

Plug x into the equation and solve

5x - 2y = 30 <- Rewrite

5(8) - 2y = 30 <- Plug x in

40 - 2y = 30 <- Simplify

-40 -40 <- Get y alone

-2y = -10 <- Simplify

y = 5 <- Divide both sides by -2 to get y

Answer 2

Y=5

Explanation: