Example

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

Question

$$[18-2(5+1)J\div3+4$$

Answer

[18-4*J+4

Solution


Simplify  \(5+1\)  to  \(6\).
Use this rule: \(\frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}\).
Simplify  \(2\times 6J\)  to  \(12J\).
Simplify  \(\frac{12J}{3}\)  to  \(4J\).
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