Question

5x + 3y = 30 , 3x + 5y = 26
find the
value of
x + y​

Answer 1

therefore x+y= 230/2= 115Hope you like this answer

Answer 2

Answer (✿^‿^)

5x + 3y = 30-------( 1 )

3x + 5y = 26-------( 2 )

Solve Equation ( 1 ) and ( 2 )

5x + 3y = 30 } Multiplying by 3

3x + 5y = 26 } Multiplying by 5

15x + 9y = 90

15x + 25y = 130

(- ) (-) (-)

-------------------------

0 - 16y = - 40

y = -40 Divided by -16

y = 2.5

Putting the value of y :-

5x + 3y = 30

5x + 3×2.5 = 30

5x + 7.5 = 30

5x = 30 - 7.5

5x = 22.5

x = 4.5

So , The value of X = 4.5

Y = 2.5

Find the Value of x + y

= 4.5 + 2.5

= 7

All the best :)