aryankoju2020 aryankoju2020

21-12-2020
Mathematics

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if a+b =5, b+c=6, c+a=7. then find the value of a

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veronicaysemin veronicaysemin

21-12-2020

Answer:

a = 3

Step-by-step explanation:

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ChoiSungHyun ChoiSungHyun

21-12-2020

Step-by-step explanation:

2a + 2b + 2c

= (a + b) + (b + c) + (c + a)

= 5 + 6 + 7

= 18.

Hence, a + b + c = 9 and a = (a + b + c) - (b + c) = 9 - 6 = 3.

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