Math, asked by alisahembrom56, 7 months ago

please write all the answer in step by step. please please please

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Answered by purbadas

0

Answer:

1) (3a - 6a ) - ( 5b + 7b) - ( 5c - 9c)

3a - 2b - 4c

therefore, a = 3

b = 2

c = 4

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