Question

A system of equations is given below:

y = 4x – 3
2x + 7y = 41

Which of the following steps could be used to solve by substitution?

2(y = 4x – 3) + 7y = 41

4x – 3 = 2x + 7y

2x + 7(4x – 3) = 41

2(y = 4x – 3)

Answer 1

2x+7(4x-3)=41

Explanation:

if y = 4x-3 substitute it in for y in 2x+7y=41