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Question 93102: 3Y=X+5 3X-9Y= -10
Answer by tutorcecilia(2152)   (Show Source):
You can put this solution on YOUR website! There are several methods for solving this system of equations. I will use the method of addition:
First, line-up the variables:
-x+3y=5
3x-9y=-10
.
.Next, multiply one of the equations by a number that will cause a variable to cancel out:
3(-x+3y=5)=-3x+9y=15
.
.
Add the equations together:
-3x+9y=15
3x-9y=-10
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0=-5 (incorrect answer, therefore, there is "no solution"]
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