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Basic Math
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Integers & Absolute Values
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Trigonometric Functions
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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$-15-(-9)=$$
Evaluate
$-6$
Solution Steps
The opposite of $-9$ is $9$.
$$-15+9$$
Add $-15$ and $9$ to get $-6$.
$$-6$$
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Factor
$-6$
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