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How do you solve $x - y = 4$ $x- y=4$ , $2 x - 5 y = 2$ $2x - 5y=2$ by graphing?

1 Answer

Feb 25, 2017

graph{(x-y-4)(2x-5y-2) = 0 [-10, 10, -5, 5]}

So we graph it, and find the intersection, which appears to be (6,2)

Thus, the solution is x = 6 and y = 2.

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