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Basic Math
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Integers & Absolute Values
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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$-2x\le-42$$
Solve for x
$x\geq 21$
Solution Steps
Divide both sides by $-2$. Since $-2$ is negative, the inequality direction is changed.
$$x\geq \frac{-42}{-2}$$
Divide $-42$ by $-2$ to get $21$.
$$x\geq 21$$
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