x-3y=-4..........................(1)
4x-5y=-23......................(2)
From (1) above:
x =-4 +3y sub this for x in (2) above
4(-4 + 3y) - 5y = -23
-16 + 12y -5y = -23
7y =-23 + 16
7y = - 7
y = -7/7
y = - 1 sub this into (1) above
x - (3* -1) =-4
x - (-3) =-4
x + 3 = -4
x =-4 - 3
x = -7
