SOLUTION: 1.what is the solution of the system of equations? 4x-8y=-4 5x+7y=-22 2.solve the system of euations below by elimination? 2x+y=15 5x-y=13 3.what is the solution of the s

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Question 309345: 1.what is the solution of the system of equations?
4x-8y=-4
5x+7y=-22
2.solve the system of euations below by elimination?
2x+y=15
5x-y=13
3.what is the solution of the systen of equations below?
4y-7x=-1
2y+3x=-33
4. give the solution to this system of equations,
2/7x+3/5y=-2
4/7x+1/5y=6
5.use the elimination process to solve the system of equations below,
-3x+5y=12
6x-10y=-21
6.solve the system of equations
5x-2y=11
2x-12=-3y
7.the sum of four times number and six times a second number is 36. the doffrence of five times the second number and thre times the first number is 49. find the numbers

Found 2 solutions by nyc_function, ichudov:
Answer by nyc_function(2741)   (Show Source): You can put this solution on YOUR website!
BIG TIP: Post one question at a time or else no one will reply.
Answer by ichudov(507)   (Show Source): You can put this solution on YOUR website!
you cannot dump many problems in one question. I will solve just one

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
We'll use substitution. After moving -8*y to the right, we get:
, or . Substitute that
into another equation:
and simplify: So, we know that y=-1. Since , x=-3.

Answer: .

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