evie-mitchell_60997827ea3b2
evie-mitchell_60997827ea3b2
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xy=4.............[1] (1/2)x-y=1......[2] Rewrite [2] solving for y .....½x-y=1......[2] .....y = ½x - 1..[2a] Now substitute for y from [2a] into [1] and simplify .....xy=4 .............[1] .....x[½x - 1] = 4 .....½ x² - x = 4 .....½ x²…