Pavlodutka50 Pavlodutka50

25-11-2020
Mathematics

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Need answer ASAP will give brainliest check out the picture

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vlonejaeda vlonejaeda

25-11-2020

Answer:

i think... x=6

Step-by-step explanation:

3x+9=x+21

3x−x=12

2x=12

x=6

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