Example

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

Question

$$15-(-5)+12+; (-8)+(-3)$$

Answer

15+5+12+;-8-3

Solution


Remove parentheses.
\[\begin{aligned}&15+5+12+\\&-8+-3\end{aligned}\]
Simplify.
\[\begin{aligned}&15+5+12+\\&-8-3\end{aligned}\]
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