$$ \begin{aligned} 7p-7p &= 8&& \text{simplify left side} \\[1 em]7p-7p &= 8&& \\[1 em]0 &= 8&& \\[1 em] \end{aligned} $$
Since the statement $ \color{red}{ 0 = 8 } $ is FALSE, we conclude that the equation has no solution.
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