[3 marks sum]

Question

If 2 (A + B) = 2 (A - B) = 1;find the values of A and B.

Vidyadip · Accepted Answer

2 (A + B) = 1 (A+B)=1 2 (A+B) = 60^ A + B = 60^ ........( 1) 2 (A – B) = 1 2 (A-B)=1 2 A – B = 30^ ........(2) Adding (1) and (2) A + B + A – B = 60^ + 30^ 2A = 90^ A = 45^ A + B = 60^ B = 60^ – A B = 60 – 45^ B = 15^

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