Example

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

Question

$$(2-9)8+9-$$

Answer

-47-

Solution


Simplify  \(2-9\)  to  \(-7\).
\[-7\times 8+9-\]
Simplify  \(-7\times 8\)  to  \(-56\).
\[-56+9-\]
Simplify  \(-56+9\)  to  \(-47\).
\[-47-\]
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