3 years ago

!!!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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