Question

If 3x +5y = 11 and 5x + 3y = 13, then the value of ( x + y) without actually solving the above system of equations is
-3
3
24
0

Answer 1

Answer:

answer=3

EXPLANATION

5X+3Y=11 (1)

3X+5Y=13 (2)

ADDING EQUATION 1 AND 2 WE GET

5X+3X+3Y+5Y=11+13

》8X+8Y=24

》8(X+Y)=24

》X+Y=24/8

》X+Y=3(ANSWER)

HOPE IT HELPS YOU

Answer 2

Answer:

3

Solution:

Here,

The given equations are :

3x + 5y = 11 ------(1)

5x + 3y = 13 -------(2)

We need to find the value of (x + y) without actually solving the given system of equations.

Thus,

Adding eq-(1) and (2) , we get ;

=> 3x + 5y + 5x + 3y = 11 + 13

=> 8x + 8y = 24

=> 8(x + y) = 24

=> x + y = 24/8

=> x + y = 3

Hence,

The required answer is 3 .