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Basic Math
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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$(+3)-(-10)$$
Evaluate
$13$
Solution Steps
The opposite of $-10$ is $10$.
$$3+10$$
Add $3$ and $10$ to get $13$.
$$13$$
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Factor
$13$
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