Example

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

Question

$$-4-1-3+5+6+7$$

Answer

10

Solution


Simplify  \(-4-1\)  to  \(-5\).
\[-5-3+5+6+7\]
Simplify  \(-5-3\)  to  \(-8\).
\[-8+5+6+7\]
Simplify  \(-8+5\)  to  \(-3\).
\[-3+6+7\]
Simplify  \(-3+6\)  to  \(3\).
\[3+7\]
Simplify.
\[10\]
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