Question

X+Y = 2 X-Y= 4
FIND THE VALUE OF X AND Y

Answer 1

X+Y=4................1.

2X+Y=4...............2

TAKING SUBTRACTION OF EQUATION 1AND 2

X+Y=4

-

2X+Y=4

- - -

___________

3X. =0

X=3

PUTTING VALUE OF X IN EQUATION 1

X+Y=4

3+Y=4

Y=4-3

Y=1