Question

Use the substitution method to solve the system of linear equations. 2x-y=6 and 9x-4y=28. What is the solution?

Answer 1

1) y = 2x - 6
2) 4y = 9x - 28
y = 9/4x - 7

1) = 2)

2x - 6 = 9/4x - 7
2x - 9/4x = -7 + 6
8/4x - 9/4x = -1
-1x = -1
x = 1

x = 1 --> 1)

y = 2x - 6
y = 2(1) - 6
y = 2 - 6
y = -4

Answer 2

So, the solution is (2,1)?

Answer 3

(1,-4)

Answer 4

Thank you! I have been struggling all semester!

Answer 5

Your Welcome , Medal Please ?! (: