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OpenStudy (anonymous):
Solve x + 3y = 9 3x - 3y = -13 (-1,10/3 ) (1, -10/3 ) (-1,3/10 ) (1,-3/10 ) HELPPP PLEASEE
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jigglypuff314 (jigglypuff314):
system of equations: elimination method x + 3y = 9 3x - 3y = -13 add as columns ------------ so 4x + 0 = -4 4x = -4 solve for x
jigglypuff314 (jigglypuff314):
then once you get x plug it into x + 3y = 9 to solve for y :)
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