SOLUTION: 5x+5y=-11 7x-2y=17

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Question 214742: 5x+5y=-11
7x-2y=17
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
5x+5y=-11
7x-2y=17

The following will solve the system of equations using substitution:

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
+system%28+%0D%0A++++5%5Cx+%2B+5%5Cy+=+-11%2C%0D%0A++++7%5Cx+%2B+-2%5Cy+=+17+%29%0D%0A++We'll use substitution. After moving 5*y to the right, we get:
5%2Ax+=+-11+-+5%2Ay, or x+=+-11%2F5+-+5%2Ay%2F5. Substitute that
into another equation:
7%2A%28-11%2F5+-+5%2Ay%2F5%29+%2B+-2%5Cy+=+17 and simplify: So, we know that y=-3.6. Since x+=+-11%2F5+-+5%2Ay%2F5, x=1.4.

Answer: system%28+x=1.4%2C+y=-3.6+%29.



I hope the above steps were helpful.

For free Step-By-Step Videos on Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra or for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.

And good luck in your studies!

Respectfully,
Dr J