solve the following equations graphically x + y = 7 and 5x + 2y = 20. no links!!!!

Dear Student,

Please find below the solution to the asked query:

First we form a table for different values of ' x '  and ' y '  for both equations , As :
 

x + y  = 7		5 x  + 2 y = 20
x	y	x	y
0	7	0	10
- 2	9	- 2	15
2	5	2	5
7	0	4	0
9	- 2	6	- 5

Now we represent these points on x -  y plane , As :



Here we can see that both lines intersect at ( 2 , 5 ) , So

x = 2 and y  =  5                                                                ( Ans )


Hope this information will clear your doubts about topic.

If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.

Regards