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

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Question 215655: x+y=57
.25x+50y=925
Answer by drj(1380)   (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:
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=-20. Since , x=77.

Answer: .



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
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