SOLUTION: Can you help me solve the system? x+2y=-12 y=20-2x

Question 227738: Can you help me solve the system?
x+2y=-12
y=20-2x
Answer by drj(1380) (Show Source): You can put this solution on YOUR website!
Can you help me solve the system?

x+2y=-12
y=20-2x or 2x+y=20

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION

Solve:
We'll use substitution. After moving 2*y to the right, we get:
, or . Substitute that
into another equation:
and simplify: So, we know that y=-14.6666666666667. Since , x=17.3333333333334.

Answer: .

I hope the above steps were helpful.

For FREE Step-By-Step videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.

And good luck in your studies!

Respectfully,
Dr J
http://www.FreedomUniversity.TV

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