Question

Given the equations y-3x=8 and 3x=2y+7 what would you substitute for Y in the equation 3x=2y+7

A.8-3x

B.8/3×

C.8+3x

D.8(3x)​

helppppp pleaseeeeee fastttt​

Answer 1

8+3x

Explanation:

Look at the first equation. If you add 3x to both sides of the equation, it becomes y-3x+3x=8+3x. Y-3x+3x is the same thing as just y, so the equation is really saying y=8+3x. Replace y in the other equation with 8+3x.