Question 855179
4	x		-1	y	=	12	.............1	
Total value								
-8	x	+	2	y	=	-24	.............2	
Eliminate	y							
multiply (1)by		2						
Multiply (2) by		1						
8	x		-2	y	=	24		
-8	x	+	2	y	=	-24		
Add the two equations								
0	x				=	0		

this is absurd

Both the equations are of the same line.
Hence there are infinite solutions