3 years ago

Someone help pleaaaaseeeeee

Mathematics

1 answer:

oee [108]3 years ago

8 0

Answer:

3b - r

Step-by-step explanation:

b + g + y = r

g = 2b, so

b + 2b + y = r

Combine like terms

3b + y= r

Subtract 3b from each side

y = 3b - r

The number of yellow balloons was 3b - r.

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