Math, asked by toshi11692, 4 months ago

If 18, a , b , -3 are in AP then find a+b. (5,ii)

Answers

Answered by ayantikakb

4

Answer:

a-18=b-a b-a=-3-b

2a=b+18 2b=a-3

a=2b+3

2(2b+3)=b+18

4b+6=b+18

3b=12

b=4

a=11

a+b=15

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