Answer:
{x,y}={7,-2}
Explanation:
3x - 2y = 25
-5x + 2y = -39
[2] 2y = 5x - 39
[2] y = 5x/2 - 39/2
// Plug this in for variable y in equation [1]
[1] 3x - 2•(5x/2-39/2) = 25
[1] -2x = -14
// Solve equation [1] for the variable x
[1] 2x = 14
[1] x = 7