Question

How do i solve an elimination, substitution, and graphing method for y=25x+35, y=5x+45

Answer 1

y=25x+35
y=5x+45

25x+35=5x+45

20x=10,x=1/2

y=5 + 45
 2
y=47.5

Answer 2

y = 25x + 35
y = 5x + 45

Thus,

25x + 35 = 5x + 45

25x - 5x = 45 - 35

20x = 10

x = 10/20 = 1/2

y = 5x + 45
y = 2.5 + 45
y = 47.5

Thus, x = 1/2, y = 47.5