SOLUTION: hi... my equation is 6x+9y=39 and the bottom one is -2x+2y=18 i need to find the method of the equation i hope you can help me with this problem thank you a lot...

Question 310221: hi... my equation is 6x+9y=39 and the bottom one is -2x+2y=18 i need to find the method of the equation i hope you can help me with this problem thank you a lot...
Answer by ichudov(507) (Show Source): You can put this solution on YOUR website!

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION

Solve:
We'll use substitution. After moving 9*y to the right, we get:
, or . Substitute that
into another equation:
and simplify: So, we know that y=6.2. Since , x=-2.8.

Answer: .

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