Evaluate 3x +9 when x=4

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asked Dec 8, 2018 199k views

2 Answers

Ever · Answer 1 · 2018-12-13T20:43:01+0000

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

Evaluate 3x +9 when x=4

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