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Use elimination to solve the system of equations given by 3x+4y=5 and 21x+28y=35

 Mar 6, 2017
 #1
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Your "two" equations are "one" equation!!. If you multiply the 1st one by 7, you get the 2nd equation.

 Mar 6, 2017
 #2
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Um that's not what I needed....but thx?

 Mar 6, 2017
 #3
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Note to the questioner.....the "Guest" is correct.......these are the same equations....thus.....the "system" will have infinite solutions for x and y

 

cool cool cool

 Mar 6, 2017

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