Question

Slove
graphically 2x+y=5
x-y=4
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Answer 1

Solution:-

2x+y=5 ... (I)

x-y=4 ...(ii)

3x=9

x=3 ans.

putting value of x in equation (I)

2*3+y=5

6+y=5

y=5-6

y= -1 ans.

Answer 2

Step-by-step explanation:

2x+y=5

(1) y=5-2x

y=5-2(1)

y=5-2

=3

(2)y=5-2x

y=5-2(2)

y=1

(3)y=5-2(3)

y= 5-6

y=-1

x-y=4

x-4=y

(1)x-4=y

1-4=y

-3=y

(2)x-4=y

2-4=y

-2=y

(3)x_4=y

3-4=y

-1=y