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-17-2x=6-x -23=x
2x + 3y = 17 3x + 4y = 24 (2x + 3x) + (3y + 4y) = (17 + 24) 5x + 7y = 41
2x+17 = 4x-3 2x-4x = -3-17 -2x = -20 Answer: x =10
12x + 31 = 2x + 1710x = -14x = - 1.4
7x = 21 x = 3