SOLUTION: solve by subsitution x+4y=3 2x+3y=-4

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Question 212606: solve by subsitution
x+4y=3
2x+3y=-4
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
Solve by substitution
x%2B4y=3
2x%2B3y=-4
The following step solves the system of equations by substitution.

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
+system%28+%0D%0A++++1%5Cx+%2B+4%5Cy+=+3%2C%0D%0A++++2%5Cx+%2B+3%5Cy+=+-4+%29%0D%0A++We'll use substitution. After moving 4*y to the right, we get:
1%2Ax+=+3+-+4%2Ay, or x+=+3%2F1+-+4%2Ay%2F1. Substitute that
into another equation:
2%2A%283%2F1+-+4%2Ay%2F1%29+%2B+3%5Cy+=+-4 and simplify: So, we know that y=2. Since x+=+3%2F1+-+4%2Ay%2F1, x=-5.

Answer: system%28+x=-5%2C+y=2+%29.




I hope the above steps were helpful. Good luck in your studies!

Respectfully,
Dr J

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