SOLUTION: 21X+7y=42 -5x+5y=10

Question 1132050: 21X+7y=42
-5x+5y=10
Found 2 solutions by Alan3354, josgarithmetic:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Do you have a question?

Answer by josgarithmetic(39623) (Show Source): You can put this solution on YOUR website!
Variables X, y, and x.
?
?

If you mean to have two equations and TWO unknown variables, then make it as

and that system simplifies to
and ready for eliminating y to quickly solve for x....
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