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OpenStudy (anonymous):
How do I do this? If x + 2y = 6 and 3x + y = 4, then 4x + 3y =
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OpenStudy (phi):
add your 2 equations
OpenStudy (phi):
you could solve for x and then y (or vice versa), but notice what happens if you just add the 2 equations together : x + 2y = 6 3x + y = 4 ---------- 4x + 3y = 10
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