Question

For the following system, use the second equation to make a substitution for y in the first equation.

2x + y = 5
y + 3 = 2x

2x + 2x - 3 = 5
2x + 3 - 2x = 5
2x + 2x + 3 = 5

Answer 1

2x + 2x - 3 = 5.

Explanation:

Answer 2

It is A

Explanation:

2x + y = 5

y + 3 = 2x

From equation 2:

y = 2x - 3

Substituting in the first equation:

2x + 2x - 3 = 5.