Mathematics, 28.08.2020 03:01, dion27

Let f(x) = 2x + 2. Solve f^−1(x) when x = 4. So do I substitute x for y and then how do I solve f^-1(x)???

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Let f(x) = 2x + 2. Solve f^−1(x) when x = 4. So do I substitute x for y and then how do I solve f^-1...