Solve these system of equations. Then, write the final answer in (x,y) form.
1.) x-y=7
3x+2y=6
2.) 2x-4y=3
-3x+5y=1
#1
x = y+7, so
3(y+7)+2y = 6
now get y, then x = y+7
#2
multiply the equations by 5 and 4, and you have
10x-20y = 15
-12x+20y = 4
Now add them to get x, then find y.