Question

Tell whether the given value is a solution of the inequality.

$7\mathrm{p}\ge \mathrm{p}–12;\mathrm{p}=-2$

Answer 1

Checking whether the given value is a solution or not by putting $\mathrm{p}=-2$in given inequality.

$\Rightarrow 7\mathrm{p}\ge \mathrm{p}–12$

$\Rightarrow 7\times (-2)\ge -2–12$

$\therefore -14\le -14$, which is true.

Hence, $\mathrm{p}=-2$ is the solution of the inequality $7\mathrm{p}\ge \mathrm{p}–12$