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OpenStudy (anonymous):
2x + 7y=17 4x + y= 8
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OpenStudy (tad1):
multiply the first equation by -2 to get -4x -14y = -34 then add to the second to get -13y = -26 so y = 2 back substitute to find x 4x _26 = 8 4x =34 x = 17/2
jhonyy9 (jhonyy9):
than y=2 --- 4x +2 = 8 --- 4x = 6 --- x = 6/4 = 3/2 x=3/2 y=2
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