4x+2y=2 3x+y=4 you need to eliminate either the x or the y leave the first equation alone multiply the second equation by 2 to get the coefficient of y the same so it can be eliminated 4x+2y=2 6x+2y=8 to eliminate the y's you need to change the signs of the second equation and add -2x= -6 x=3 go to either equation and substitute 3 for x to solve for y y=-5