SOLUTION: x+y=57 .25x+50y=925

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Question 215655: x+y=57
.25x+50y=925
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=57
25x+50y=925

The following will solve the linear system of equation with Substitution.

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
+system%28+%0D%0A++++1%5Cx+%2B+1%5Cy+=+57%2C%0D%0A++++25%5Cx+%2B+50%5Cy+=+925+%29%0D%0A++We'll use substitution. After moving 1*y to the right, we get:
1%2Ax+=+57+-+1%2Ay, or x+=+57%2F1+-+1%2Ay%2F1. Substitute that
into another equation:
25%2A%2857%2F1+-+1%2Ay%2F1%29+%2B+50%5Cy+=+925 and simplify: So, we know that y=-20. Since x+=+57%2F1+-+1%2Ay%2F1, x=77.

Answer: system%28+x=77%2C+y=-20+%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