Question

2x+3y=5 and 3x+2y=10 the value of x+y is

Answer 1

Answer:

3

Step-by-step explanation:

3(2x+3y=5)

2(3x+2y=10)

6x+9y=15

6x+4y=20

-

5y= -5

y= -1

substitute y= -1 in eq. 1

2x+3(-1)=5

2x-3=5

2x=5+3

2x=8

X=4

x+y= 4+(-1)

= 4-1

= 3

Answer 2

Step-by-step explanation:

2x+3y=5

3x+2y=10

multiply by 1equation2 & 2 equation 3

4x+6y=10

9x+6y=30

5x=20

X=4

put the value in equation 1

2x+3y=5

2(4)+3y=5

8+3y=5

3y=5-8

3y=3

y=3/3

y=1

X+y=4+1 =5