Question

What is the solution to the system of equations?

Use any method.
{3x+y=3
{2x+y=7
Enter your answer in the boxes. Parentheses are already provided.

Answer 1

x=-4, y=15

Explanation:

3x+y=3

2x+y=7

Multiply top by -1

-3x-y=-3

2x+y=7

Add equations together

-x=4

x=-4

Plug x=-4 into any equation

3(-4)+y=3

-12+y=3

y=15