Example

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

Question

$$8-3+4+2-15-12+2$$

Answer

-14

Solution


Simplify  \(8-3\)  to  \(5\).
\[5+4+2-15-12+2\]
Simplify  \(5+4\)  to  \(9\).
\[9+2-15-12+2\]
Simplify  \(9+2\)  to  \(11\).
\[11-15-12+2\]
Simplify  \(11-15\)  to  \(-4\).
\[-4-12+2\]
Simplify  \(-4-12\)  to  \(-16\).
\[-16+2\]
Simplify.
\[-14\]
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