Solve simultaneously: 2x + y = 18 and x - y = 6
Make both equal to y:y = 18 - 2xy = x - 6Make both equal to each other:18 - 2x = x - 63x = 24x = 8Substitute x into one of the original equations:x - y = 68 - y = 6y = 2So x = 8 and y = 2
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2 5/3 + 2 8/9