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IceJOKER [234]
3 years ago
14

Please help me with this MATH question.

Mathematics
1 answer:
andrey2020 [161]3 years ago
3 0

Answer:

y=4

Step-by-step explanation:

84=30y-9y, first you collect like terms.

84=21y, swap the sides

21y=84, devide both sides and you get y =4

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