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Mathematics 15 Online
OpenStudy (anonymous):

Given f(x) = the quantity of 5x plus 1, divided by 2 solve for f-1(8).

OpenStudy (anonymous):

@Easyaspi314

OpenStudy (anonymous):

f(x) = (5x + 1)/2 You want the inverse of f at 8, so just set (5x + 1)/2 = 18, and solve for x.

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