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Presumably this is a simultaneous equation and you have to find the values of x and y. x+3y = 7 x-3y = 1 Add both equations up which will eliminate 3y. 2x+0 = 8 Divide both sides by 2 to find the value of x. x = 4 Substitute 4 for x to find the value of y. x = 4 and y = 1

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Q: X plus 3y equals 7 x - 3y equals 1?
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