SOLUTION: I am stuck on elimination by substitution. The variable has to be "naked" or alone, but both x and y have numbers before the variables.

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Question 751292: I am stuck on elimination by substitution. The variable has to be "naked" or alone, but both x and y have numbers before the variables.
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!



A process to eliminate terms of y.


Note each entire equation is being multiplied.


We may sometimes apply commutative property of multiplication,



Subtract one equation from the other equation:

And this is how we have the term, "elimination method".

In this general case, symbolically giving
, or , and then division by the coefficient expression on x,

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