3x+y+60=180 5y-5+2x=180
I would change the first one to
3x+y=120 and second one to
2x+5y=185
Multiply equation 1 by -5 and add to equation 2 to eliminate y. Solve for x.
Solve this system of equations. 3x+y+60=180 5y-5+2x=180
1 answer