Since y is equal to both equations, the equations are equal to each other as well.
6x-8=4x+6
Add 8 to both sides.
6x= 4x+14
Subtract 4x on both sides.
2x= 14
Divide by 2.
x=7.
Now, plug that into one of the equations for y.
6(7)-8= y
42-8= y
34= y
So, x= 7 and y= 34.
I hope this helps!
~kaikers