Example

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

Question

$$-12-18+1-7-28$$

Answer

-64

Solution


Simplify  \(-12-18\)  to  \(-30\).
\[-30+1-7-28\]
Simplify  \(-30+1\)  to  \(-29\).
\[-29-7-28\]
Simplify  \(-29-7\)  to  \(-36\).
\[-36-28\]
Simplify.
\[-64\]
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