SOLUTION: Solve using substitution method 2× +7y=9 5×-7y=11

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Question 1040473: Solve using substitution method
2× +7y=9
5×-7y=11
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
2× +7y=9
5×-7y=11

A far better way to indicate those multiplications is to separate the numbers to be multiplied into parentheses groupings.



But this is two equations in only one variable. y MUST have the same value for both equations:


-


-
.....but it does not have this same value for both. .
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

Solve using substitution method
2× +7y=9
5×-7y=11
Why on earth would you want to solve this system using substitution when it can be solved immediately using ELIMINATION? Is that what the question asks? 

If so,  

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