Question
Solve the following inequations: $7 x-25 \leq-4$

Answer

$
7 x-25 \leq-4
$
Adding 25 on both sides, we get
$
\begin{aligned}
& 7 x-25+25 \leq-4+25 \\
& \therefore 7 x \leq 21
\end{aligned}
$
Dividing both sides by 7 , we get $x \leq 3$
$\therefore \mathrm{x}$ takes all real values less or equal to 3 .
$\therefore$ Solution Set $=(-\infty, 3]$

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