I am needing help solving the question:   The quantity represents a real number. Find any restrictions on x. (Enter your answers as a comma-separated list. If there are no restrictions on x, enter NONE.) 1/2x − 5 = 10   Can you please show me how you slove this equation.

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Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.