SOLUTION: solve by the substitution method. What is the solution of the system? 7x-9y=41 8x+46=y

Algebra ->  Linear-equations -> SOLUTION: solve by the substitution method. What is the solution of the system? 7x-9y=41 8x+46=y      Log On


   

Question 320202: solve by the substitution method.
What is the solution of the system?
7x-9y=41
8x+46=y
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.7x-9y=41
2.8x%2B46=y
Substitute eq. 2 directly into eq. 1,
7x-9%288x%2B46%29=41
7x-72x-414=41
-65x=455
highlight%28x=-7%29
.
.
Then using eq. 2,
y=8%28-7%29%2B46
y=-56%2B46
highlight%28y=-10%29