maddie183 maddie183

27-04-2017
Mathematics

contestada

Evaluate 3x +9 when x=4

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celinekrugielki celinekrugielki

27-04-2017

So you can use substitution for this problem which is plugging in the 4 for x:
3(4)+9
then you know that you can simplify it even more to
12+9
that can be simplified even more to
21
which is in simpliest form

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rianne14a rianne14a

27-04-2017

3x+9 is or equals to 21

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