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Alinara [238K]
3 years ago
5

!!!100 POINTS!!! PLEASE HELP! (I WILL GIVE BRAINLIEST)

Mathematics
1 answer:
taurus [48]3 years ago
4 0

Answer:

#13: 7   Not sure for 15

Step-by-step explanation:

[3x-6]=15

    +6   +6

3x=21

divide by 3 on both sides

x=7

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