SOLUTION: solve -4x+y =-11 2x-3y =5 by substitution

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Question 107405:
solve -4x+y =-11
2x-3y =5 by substitution
Answer by Annabelle1(69) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
+system%28+%0D%0A++++-4%5Cx+%2B+1%5Cy+=+-11%2C%0D%0A++++2%5Cx+%2B+-3%5Cy+=+5+%29%0D%0A++We'll use substitution. After moving 1*y to the right, we get:
-4%2Ax+=+-11+-+1%2Ay, or x+=+-11%2F-4+-+1%2Ay%2F-4. Substitute that
into another equation:
2%2A%28-11%2F-4+-+1%2Ay%2F-4%29+%2B+-3%5Cy+=+5 and simplify: So, we know that y=0.2. Since x+=+-11%2F-4+-+1%2Ay%2F-4, x=2.8.

Answer: system%28+x=2.8%2C+y=0.2+%29.