x+2y=10,3x-y=9

solve using elimination

Answers
We can solve this simultaneous equation in a couple of ways, we'll do it using though.
theo.cushion
16 May 2012
How do you think you can make the coefficients match?
theo.cushion
16 May 2012
The first step is to make the coefficients of in both equations match each other. This is important as it allows us to easily substract one equation from the other, leaving no 's, and therefore only one unknown.
theo.cushion
16 May 2012
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