3√1/2x-5)+1=7 Solce the equation, check for extraneous solutions.

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Assuming that you mean it is 3 * √(1/2x-5) + 1 = 7, then3* √(1/2x-5) = 62 = √(1/2x-5)4 = 0.5x - 59 = .5xx = 18