Question

complete the following table to draw graph of the equations-(1) x+y=3 (2) x-y=4 ​

Answer 1

$x + y = 3$

when we adding the both equation

$x - y = 4$

$2x = 7$

$x = 7 \div 2$

$x = 3.5$

on putting the X value in the equation first

$x + y = 3$

$3.5 + y = 3$

$y = - 0.5$

Answer 2

Given :  the equation x + y = 3.

To Find :  Draw the graph

Solution:

x + y = 3

x = 0 => y = 3

y =0 => x = 3

Hence

х     y  

3     0

0      3

Plot these two points and draw line

Similarly do for   x- y = 4

( 4 , 0)  and ( 0  , - 4)

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