Answers

2014-11-11T12:29:39+08:00
The equation would beĀ 4+2(x) if that was what you were looking for.
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2014-11-11T17:10:32+08:00
It can be written as 4 + 2x

+ represents more than (- for less than)

twice means 2

and we have x

Same like the first answer :)

I hope it helps
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