Question

Solve using graphical method
x+y=7 , 3x-2y=1​

Answer 1

Answer:

(x+y=7)2............(1)

(3x-2y=1)1..........(2)

=2x+2y=14...........(1)

=3x-2y=1..............(2

=5x=15

=x=15/5

=x=3

x+y=7...........(1)

=3+y=7

=y=7-3

=y=4

x=3

y=4

Answer 2

Answer:

x = 3 and y = 4

Step-by-step explanation:

Given :

x + y = 7

x = 7 - y ... ( i )

3 x - 2 y = 1

3 ( 7 - y ) - 2 y = 1

21 - 3 y - 2y = 1

- 5 y = - 20

5 y = 20

y = 4

x = 7 - y

x = 7 - 4

x = 3

Now look at graph ( 3 , 4 ) intersect each other.

It signify that value of x and y is correct.