Verified answer

Answer:

x=6 , y=21

Step-by-step explanation:

given :-

x/3 + y/3 = 7----------------(1)

x/2 + y/3 = 7---------------(2)

solving eq(1) -

x/3 + y/3 = 7

x+y/3 =7

x+y = 21

x=21-y------------------------(3)

solve eq(2) -

x/2+y/3 = 7

3x+2y/6 = 7

3x+2y = 42 ------------------(4)

substitute eq(3) in eq(4)-

3x+2y = 42

3(21-y)+2y = 42

63-3y+2y = 42

-y = 42-63

-y = -21

y = 21

substitute y in eq (3)

x = 21-y

x = 21-2

x = 0

(x,y) = (0,21)