Example

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

Question

$$12-8-6+1$$

Answer

-1

Solution


Simplify  \(12-8\)  to  \(4\).
\[4-6+1\]
Simplify  \(4-6\)  to  \(-2\).
\[-2+1\]
Simplify.
\[-1\]
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