SOLUTION: 5x+3y=12 8x+3y=9

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Question 227853: 5x+3y=12
8x+3y=9
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
5x+3y=12
8x+3y=9

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
+system%28+%0D%0A++++5%5Cx+%2B+3%5Cy+=+12%2C%0D%0A++++8%5Cx+%2B+3%5Cy+=+9+%29%0D%0A++We'll use substitution. After moving 3*y to the right, we get:
5%2Ax+=+12+-+3%2Ay, or x+=+12%2F5+-+3%2Ay%2F5. Substitute that
into another equation:
8%2A%2812%2F5+-+3%2Ay%2F5%29+%2B+3%5Cy+=+9 and simplify: So, we know that y=5.66666666666667. Since x+=+12%2F5+-+3%2Ay%2F5, x=-1.

Answer: system%28+x=-1%2C+y=5.66666666666667+%29.



I hope the above steps were helpful.

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And good luck in your studies!

Respectfully,
Dr J


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