Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$(-13)+18; =$$

Answer

-13+18;

Solution


Remove parentheses.
\[\begin{aligned}&-13+18\\&\end{aligned}\]
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