Question

A-B=60-A+B=30 what is the value of A and B.

Answer 1

Answer:

a+b=60. a-b =30. 2b=30. b= 15. on putting the value of b in eq.1. a+15=60. a=60-15. a=45. so the answer is a=45 & b =15.

Answer 2

QUESTION

A-B=60-A+B=30 what is the value of A and B.

ANSWER

a+b=60 -eq.1

a-b=30 -eq.2

subtract the eq.2 from eq.1

a+b=60

a-b =30

2b=30

b=15

on putting the value of b in eq.1

a+15=60

a=60-15

a=45

so the answer is a=45 & b =15

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