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Given the two equaitons

Ax + By = C

Dx + Ey = F

The values for x and y that satisfy both equations is

x = CE -BF y = CD-AF

AE -BD , -AE+BD

A full explanation can be found here

http://math-journal.blogspot.com/p/algebra.html

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Q: What is a method to solve a system of equations by substituting for the variables?
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