Question

If 221x +334y = 755, 334x + 221y = 355, then x + y is​

Answer 1

Answer:

2

Step-by-step explanation:

The simplest way to do these type of sums, is to add and subtract both the equations and then solve them.

Adding them, we get 555x + 555y = 1110.

                       = Taking 555 common, x + y = 2.