Question

Which answer choice substituted correctly for the system below?

x=3y-17
2x+3y=-7
2x+3y=3y-17
2x+3y-17=-7
2(3y-17)+3y=-7
2x+3(3y-17)=-7

Answer 1

Answer: The third option

Explanation:

Choose the top equation (x = 3y - 17) and substitute it into x in the bottom equation (2x + 3y = -7) since we already know what x equals (3y - 17).

= 2(3y - 17) + 3y = -7