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Question

Solve 3a+5b=26 ; a+5b=22

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Solution

3a+5b=26 ......................(i)
a+5b=22 ........................(ii)

(i)(ii)2a=4

a=2

from(ii)2+5b=22

5b=20

b=4

Hence solution is (a,b)=(2,4)

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