SOLUTION: x+2y =4 3x-2y =6 Solve by substitution

Question 166424: x+2y =4
3x-2y =6
Solve by substitution
Answer by MRperkins(300) (Show Source): You can put this solution on YOUR website!

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in order to substitute, you need to find out what one variable is equal to.
In this case it is easiest to get x by itself with the first equation by subtracting 2y from each side. When you do this, you get:
now you substitute this into the other equation.

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distribute the 3

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combine like terms

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subtract 12 from each side

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divide each side by -8

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now plug this into the first equation to find out what x is:

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so: ;
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Plug these values in to the original equation to check for accuracy.
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