3x + 5y = −2

2x − y = 3

1 answer

To solve this system of equations, we can use the method of substitution.

1. Solve the second equation for y:

2x - y = 3

y = 2x - 3

2. Substitute the expression we just found for y into the first equation:

3x + 5y = -2

3x + 5(2x - 3) = -2

3x + 10x - 15 = -2

13x = 13

x = 1

3. Now that we know x = 1, we can substitute this value back into either of the original equations to solve for y:

2x - y = 3

2(1) - y = 3

y = -1

The solution to the system of equations is (1, -1).