Solve the following equation by trial-and-error method:
5𝑝 + 2 = 17

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Solution

Let’s start with p = 1, 2, 3 and so on.
5p + 2 = 17
For p = 3, both LHS and RHS are equal.
5×3 + 2 = 17
Hence, p = 3 is the solution of the equation.

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