Question

if 2x+y-5=0 and 3x+2y-8=0 , then find the sum of x+y.​

Answer 1

Answer:

x=-7/2 y=12

Sum of x and y = -7/2+12

-7+24÷2

8.5 answer

Answer 2

Answer :

3

Step-by-step explanation:

2x+y=5- 1st equation (multiply this ×2)

3x+2y=8- 2nd equation

we get ...

4x+2y=10

3x+2y=8 (now subtract .... signs which change )

(-) (-) (-)

________

x = 2

now , substitute x in equation 1

we get ,

2x+y=5

2(2)+y = 5

4+y=5

y=5-4

y=1

so ,

x=2 , y=1

hence ,

x+y = 2+1 =3

therefore answer is 3 .

Hope this explanation helps .