Example

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

Question

$$11-5+10-7$$

Answer

9

Solution


Simplify  \(11-5\)  to  \(6\).
\[6+10-7\]
Simplify  \(6+10\)  to  \(16\).
\[16-7\]
Simplify.
\[9\]
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