SOLUTION: 3x-y=-13 2x+y=-9

Question 211951: 3x-y=-13
2x+y=-9
Answer by drj(1380) (Show Source): You can put this solution on YOUR website!

The following solves the system of equations by substitution.

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION

Solve:
We'll use substitution. After moving -1*y to the right, we get:
, or . Substitute that
into another equation:
and simplify: So, we know that y=-10.6. Since , x=0.8.

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.

Good luck in your studies!

Respectfully,
Dr J
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