SOLUTION: 3x-2y=-7 x+y=1

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Question 212446: 3x-2y=-7
x+y=1
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
3x-2y=-7
x%2By=1
The following solves the linear system of equations with substitution.
Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
+system%28+%0D%0A++++3%5Cx+%2B+-2%5Cy+=+-7%2C%0D%0A++++1%5Cx+%2B+1%5Cy+=+1+%29%0D%0A++We'll use substitution. After moving -2*y to the right, we get:
3%2Ax+=+-7+-+-2%2Ay, or x+=+-7%2F3+-+-2%2Ay%2F3. Substitute that
into another equation:
1%2A%28-7%2F3+-+-2%2Ay%2F3%29+%2B+1%5Cy+=+1 and simplify: So, we know that y=2. Since x+=+-7%2F3+-+-2%2Ay%2F3, x=-1.

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



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

Respectfully,
Dr J

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