SOLUTION: 3x-y=7 10x-5y=25 solve by elimination,substitution,& graphing

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Question 130889: 3x-y=7 10x-5y=25 solve by elimination,substitution,& graphing
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
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2.
Multiply eq. 1 by (-5) and add the equations together to eliminate y and solve for x.



Then use either equation to solve for y.



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2.
From eq. 1,

Substitute into eq. 2,




Then,


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