Question

Find value of x and y : 6x+3y=8x+9y-5=10x+12y-8

Answer 1

Answer:

answer✔

Step-by-step explanation:

let 6x+3y =1)equation

8x+9y-5 =2 )equation

10x+12y -8=3) equation

solving 1) and 2)

6x-8x=9y-3y-5

-2x=6y-5

6y+2x=5 ______(A)

from 3)

10x+12y=8 ________(B)

now I am using Alimination method,multiply A) by 5 both sides

30y+10x =25_______(A)

subtract a) and b)

30y +10x=25

12y+10x =8

________________

18y =17

_________________

y=17/18

you can find x by putting it in any of the equation.

I hope each step is clear to you.

and u understand it.

{elimination method is taught in class 10th}