Math, asked by ruchigoel2222, 6 hours ago

please solve this question

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Answered by pavithrapoorna

0

Answer:

30

your question is answered

Answered by akanksha200714

1

Answer:

b = 20

Step-by-step explanation:

f + a - b = 180

140 + 60 - b =180

200 - b = 180

-b = -20

b = 20

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