Question

if 2x + 3y = 5 and 3x + 2y = 5 thene find the value of x + y. ​

Answer 1

Step-by-step explanation:

2x + 3y = 5 ×3

3x + 2y = 5×2

9y-4y=15-10

5y=5

y=1

and put the value of y in 2x + 3y = 5

we get 2x+3(1)=5

2x=2

x=1

hence x+y=1+1=2

ans is 2

Answer 2

Answer:

x+y=2

Step-by-step explanation:

let 2x+3y=5 be eq. (i)

and 3x+2y=5 be eq. (ii)

from (i), we get

2x+3y=5

2x=5-3y

x=(5-3y)/2____(iii)

putting the value of 'x' in eq. (ii), we get

3{(5-3y)/2}+2y=5

{(15-9y)/2}+2y=5

(15-9y+4y)/2=5

15-5y=10

-5y=10-15

-5y=-5

y=1

now, putting y=1 in eq. (iii)

x=(5-3*1)/2

x=(5-3)/2

x=2/2

x=1

therefore,

x+y=1+1=2