2x - 6y = 5
x + y = 2 solve the system of equations.

(17/8, -1/8) or if you want it in decimals  (2.125, -0.125)

2x-6y=5                    
x+y=2      y=2-x
2x-6(2-x)=5
2x-12+6=5
8x-12=5
8x=17
x=17/8

(17/8)+y=2   You plug in the x-value to find the y-value now
y=2-17/8
y=-1/8