silverwinter17 silverwinter17

30-03-2017
Mathematics

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translate this phrase into an algebraic expression

42 decreased by twice a number.

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missshe missshe

30-03-2017

42 - 2x is the answer because x is the variable standing in for the number that will be multiplied by 2 (2x means 2 times something) and decreased by just means minus. if you haven't gotten to doing 2x then do 42 - 2*x

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