SOLUTION: -7x+5y=-14 8x-3y=16

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Question 218096: -7x+5y=-14
8x-3y=16
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
-7x+5y=-14
8x-3y=16

The following will solve the above equation using substitution:

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
+system%28+%0D%0A++++-7%5Cx+%2B+5%5Cy+=+-14%2C%0D%0A++++8%5Cx+%2B+-3%5Cy+=+16+%29%0D%0A++We'll use substitution. After moving 5*y to the right, we get:
-7%2Ax+=+-14+-+5%2Ay, or x+=+-14%2F-7+-+5%2Ay%2F-7. Substitute that
into another equation:
8%2A%28-14%2F-7+-+5%2Ay%2F-7%29+%2B+-3%5Cy+=+16 and simplify: So, we know that y=0. Since x+=+-14%2F-7+-+5%2Ay%2F-7, x=2.

Answer: system%28+x=2%2C+y=0+%29.




I hope the above steps and explanation were helpful.

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

Also, good luck in your studies and contact me at john@e-liteworks.com for your future math needs.

Respectfully,
Dr J

http://www.FreedomUniversity.TV