SOLUTION: lol tired of scrolling through all those questions and answers >< if x=2y+3 and 4x-5y=9 what is the value of y? please solve without using elimination cuz i remember how to do t

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Question 255854: lol tired of scrolling through all those questions and answers ><
if x=2y+3 and 4x-5y=9 what is the value of y? please solve without using elimination cuz i remember how to do that lol! Just forget the other way.
thanks in advance

Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


The "other way" is substitution.





Note that in the first equation you have by itself in the LHS. That means that anywhere you see in the second equation, you can replace it (hence the name "Substitution Method") with the RHS of the first equation:



Distribute, collect like terms, and solve for

John


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