2X - 3Y = 7 and 3X +Y = 5

Question

what are x and y?

Answer 1

The given equations are 2x - 3y = 7  -> (1)

                                   3x +y  = 5   -> (2)

Multiply equation (2) by 3

2x - 3y = 7

9x+3y = 15

___________

11x  = 22

Therefore x = 2

Substitute the x value in eqution (1)

2(2) - 3y = 7

Therefore y = -1

The solution is x = 2 and y = -1.