Question

if 3x +2y =31 and 2x+3y=29 then find the value of (x+y).​

Answer 1

Step-by-step explanation:

3x+2y = 31 .............(1)

2x+3y = 29 ............(2)

now , from equation (1)

3x+2y=31

3x= 31-2y

x = 31-2y/3 ............(3)

substitute value of x = 31-2y/3 in equation (2)

2(31-2y/2) +3y =29

31 -2y +3y = 29

y = 29-31

y = -2

x = 31-2y/3

31-4/3

27/3

x = 9

now

x+y = 9+(-2)

x+y = 7

Answer 2

Answer:

x+y = 7

Step-by-step explanation:

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