A+B= 30 B+C= 50 A+C= 40 What is value of A, B and C.
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Answered by
1
Answer:
my answer is c =30
c= 30
a = 50
b= 40
pl mark me brainlist answer
Answered by
6
EXPLANATION.
⇒ A + B = 30. - - - - - (1).
⇒ B + C = 50. - - - - - (2).
⇒ A + C = 40. - - - - - (3).
As we know that,
Subtracting equation (1) and (2), we get.
⇒ A + B = 30. - - - - - (1).
⇒ B + C = 50. - - - - - (2).
⇒ - - -
We get,
⇒ A - C = - 20. - - - - - (4).
Now, adding equation (3) and (4), we get.
⇒ A + C = 40. - - - - - (3).
⇒ A - C = - 20. - - - - - (4).
We get,
⇒ 2A = 20.
⇒ A = 10.
put the value of A = 20 in equation (1), we get.
⇒ A + B = 30.
⇒ 10 + B = 30.
⇒ B = 30 - 10.
⇒ B = 20.
put the value of B = 20 in equation (2), we get.
⇒ B + C = 50.
⇒ 20 + C = 50.
⇒ C = 50 - 20.
⇒ C = 30.
Values of A = 10, B = 20 and C = 30.
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