Question

Find the value of (X+Y) if x - Y =3 and 2x+Y=5

Answer 1

Explanation:

by solving the equations we got the value of x and y i.e, x=8/3 y=-1/3

x+y=7/3

Answer 2

Answer:

Explanation: we can yous subtuting methord

We can write

X=3+Y ..........................(i)

And Y=5-2x...................(ii)

Putting the value of x in eq (ii)

:. Y=5-2(3+Y)

Y=5-6-2y

3y= -1

Y = -1/3

Putting the value of y in eq (i)

:. X=3-1/3

X = 8/3

ATQ ,

(X+Y) = (8/3)+(-1/3)

:. (X+Y)= 7/3