Example

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

Question

$$10-2.(4.7.2)+15=$$

Answer

25-2.4.7.2

Solution


Remove parentheses.
\[10-2.4.7.2+15\]
Simplify  \(10-2.4.7.2\)  to  \(10-2.4.7.2\).
\[25-2.4.7.2\]
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