Question

find the solution for the following pair of linear equation by graphical method 2x + Y = 8, x- y = 1​

Answer 1

Answer:

Step-by-step explanation:

2x+y=8------> 1st equation

x-y=1----->2nd equation

From 2nd equation, x=1+y

Now, substitute x value in 1st equation

2+2y+y=8

y=2

Substitute y value in 1st or 2nd equation

x=3

Now, mark it on the graph

Answer 2

The solution for the pair of linear equation 2x+y=8 and x-y=1 is x = 3, y = 2

Step-by-step explanation:

Given linear equations

$L_1: 2x+y=8$

$L_2:x-y=1$

Which are the equations of a line

In order to draw the graph of a line we only need two points satisfying the equation of the line

The graphs of lines $L_1$ and $L_2$ are drawn

From graph it is clear that the lines intersect at point A

The coordinates of point A are (3,2)

Therefore, the solution of the pair of linear equations is

x = 3, y = 2

Hope this answer is helpful.

Know More:

Q: Find the solution of the following pairs of linear equation by the graphical method:

2X+y=6

2X-y=2

Click Here: https://brainly.in/question/9020003

Q: Solve the following linear equation by graphical method.

7x-2y-11=0

6x+y+4=0

Click Here: https://brainly.in/question/13400327

Q: Solve 8x +5y =9 and 3x+2y=4 by graphical method .

Click Here: https://brainly.in/question/7334448