Example

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

Question

$$+24-2+9-5-7$$

Answer

19

Solution


Simplify.
\[24-2+9-5-7\]
Simplify  \(24-2\)  to  \(22\).
\[22+9-5-7\]
Simplify  \(22+9\)  to  \(31\).
\[31-5-7\]
Simplify  \(31-5\)  to  \(26\).
\[26-7\]
Simplify.
\[19\]
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