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Naily [24]
3 years ago
15

How to solve 21=3x+3y

Mathematics
1 answer:
Alborosie3 years ago
7 0

Answer:

x+y=7

Step-by-step explanation:

ok so first you have to divide 21 by three and then both threes by three so its just  x+y and then 21/3 is 7 so the answer is x+y=7

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Step-by-step explanation:

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