SOLUTION: Solve by any method {5x-2y=31 {2x-y=-13

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Question 1140518: Solve by any method
{5x-2y=31
{2x-y=-13

Answer by greenestamps(13198)   (Show Source): You can put this solution on YOUR website!


In my opinion, when the two equations are both in Ax+By=C form, elimination is easiest.

(1) multiply the second equation by -2 and add to the first equation
(2) that eliminates y, giving you a single equation in x that you can solve
(3) then substitute that value of x in either of the original equations to get an equation in y that you can solve to finish the problem

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