Example

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

Question

$$-1-(-2)+(-8)$$

Answer

-7

Solution


Remove parentheses.
\[-1+2-8\]
Simplify  \(-1+2\)  to  \(1\).
\[1-8\]
Simplify.
\[-7\]
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