Question

Solve the following simultaneous equation graphically.
3x + y = 10 ;  x – y = 2

Answer 1

3x + y = 10

x	0	1
y	10	7

x – y = 2

x	0	2
y	–2	0

 
The solution of the given equations is the point of intersection of the two line i.e (3, 1).