Question

5. Solve by substitution. Find the x,y ordered pair that works for both equations. You MUST use substitution, and show your work. The recording from the top of the page may help.

x – 2y = -2 and x – 4y = 10

Answer 1

x – 2y = -2

x – 4y = 10 => x = 10 + 4y

_________

10 + 4y - 2y = -2

2y = -12

y = -12/2

y = -6 => x = 10 + 4y = 10 + 4*(-6) = 10 - 24 = -14