Example

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

Question

$$1-5+15-$$

Answer

11-

Solution


Simplify  \(1-5\)  to  \(-4\).
\[-4+15-\]
Simplify  \(-4+15\)  to  \(11\).
\[11-\]
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