Question

given x:y:z=7:2:5 and the value of x-z=18.Find the value of x+y+z

Answer 1

Answer:

i can know answer

Step-by-step explanation:

given 7:2:5 =x:y:z

let

the value of x is 7x

the v ...........y...zy

......................z ....5 z

by given condition :

x—z=18 .....1

7x -5z =18 .......2

divide 18 by 2 we get 9

put 9 instead of x , y , z in eq

7 x9 -5x9=18

63 - 45 =18