Question

Which is the best first step when solving the following system of equations? x + y = 3. 4 x minus y = 7. Multiply the first equation by 4. Add the first equation to the second equation. Multiply the second equation by Negative 1. Subtract the second equation from the first equation.

Answer 1

The other guy is wrong its c

Explanation:

Answer 2

Multiply the first equation by 4.

Explanation:

4(x+y=3) which gives

4x+4y=12

and

4x-y=7

Then subtract the two equations and the x variable will be eliminated.