Question

If 47x + 3y = 18 and 3x +47y = 60, then
find x+y.

plz answer fast.. it's urgent..​

Answer 1

The first equation is 47x + 3y = 18, let (A)

The second one is 3x +47y = 60, let (B)

If we (A)+(B):

→$47x+3x+47y+3y=78$

→$50x+50y=78$

If we divide by 50:

→$\frac{50x+50y}{50} =\frac{78}{50}$

→$x+y=\frac{39}{25}$

And hence the answer is 39/25.

Answer 2

Question

If 47x + 3y = 18 and 3x +47y = 60, then

find x+y.

plz answer fast.. it's urgent..​