Question

if a+3b=13 and a+b =7, find a and b​

Answer 1

Answer:

a=4

b=3

Explanation:

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Answer 2

Answer:

a=4, b=3

Explanation:

We have,

a+3b=13..........(i)

and, a+b=7............(ii)

By elimination method, from (i)-(ii), we get,

b=3

Now, putting b=3 in eqs. (ii), we get,

a=4.