Question

Solve 5x-3y =1,
3x-y=5.

Answer 1

Below in bold.

Explanation:

5x - 3y = 1

3x- y = 5 Multiply this equation by -3:

-9x + 3y = -15 Now add this equation to the first equation:

-4x = -14

x = -14/-4 = 3.5.

Now substitute for x in equation 1:

5(3.5) - 3y = 1

-3y = 1 - 17.5

-3y = -16.5

y = 5.5.