SOLUTION: x+9y=9 3x+6y=6 chapter 7 summary & reviw.

Question 73698: x+9y=9
3x+6y=6
chapter 7 summary & reviw.
Answer by tazoftroy(22) (Show Source): You can put this solution on YOUR website!
An equation with two variables may look hard, but it's really pretty easy.
First, set up the equation like so:

Now, multiply the top equation by 3 so that the x's in each equation can be removed by use of subtraction:

Now, subtract the two. This is what you get:

Thus,
Finally, plug in the value for into any equation.
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