Question 26317
EQUATION#1.).5x-2y=17           EQUATION#2.)2x+y=104

1.)solve for y in Eq#2 by subtracting 2x from both sides. y=-2x+104
2.)substitute -2x+104 for y into EQ#1.
3.).5x-2(-2x+104)=17
   .5x+4x-208=17
   4.5x-208=17
    4.5x=225
     x=50
4.)substitute 50 for x into y=-2x+104
                            y=-2(50)+104
                            y=-100+104
                            y=4
5.) the solution set is (50,4)