Solve for both systems 5x + 4y = 55 and 5x + 2y = 35

5x + 4y = 55

5x-5x + 4y = 55-5x

4y = 55-5x

4y/4 = 55-5x/4

y=13.75-1.25x

5x + 2y = 35

5x + 2(13.75-1.25x) = 35

5x + 2(13.75) (2)(-1.25x) = 35

5x+27.5-2.5x=35

27.5+2.5x=35

27.5+2.5x-27.5=35-27.5

2.5x=7.5

2.5x/2.5=7.5/2.5

x=3

y=13.75-1.25x

y=13.75-1.25(3)

y=13.75-3.75=10