Question 907663
6      	x	+	4      	y	+	2      	z	=	2      			--------------1			
3      	x	+	4      	y		-8      	z	=	-3      			--------------2			
-3      	x	+	-6      	y	+	12      	z	=	5      			--------------3			
															
consider equation 1 &2				Eliminate	y										
Multiply 1 by		-1      					-5      								
Multiply 2 by		1      					4      								
we get															
-6      	x		+	-4      	y	+	-2      	z	=	-2					
3      	x		+	4      	y	+	-8      	z	=	-3					
Add the two															
-3      	x		+	0      	y	+	-10      	z	=	-5	-------------				4
consider equation 2 & 3				Eliminate	y										
Multiply 2 by				3      											
Multiply 3 by				2      											
we get															
9      	x	+	12      	y	+	-24      	z	=	-9      						
-6      	x	+	-12      	y	+	24      	z	=	10      						
Add the two															
3      	x	+	0      	y	+	0      	z	=	1      	-------------5				5	
Consider (4) & (5)			Eliminate	x											
Multiply 4 by				1      											
Multiply (5) by				1      											
we get															
-3      	x	+	-10      	z	=	-5      									
3      	x	+	0      	z	=	1      									
Add the two															
0      	x	+	-10      	z	=	-4      									
/	-10      														
z	=	  2/ 5													
3      	x	+	0      	z=	1      										
3      	x	+	0      	=	1      										
			x	=	  1/ 3										
Plug x & z in eq (1)															
6      	x	+	4      	y	+	2      	z	=	2      			--------------			
	2      	+	4      	y	+	  4/ 5		=	2      						
			4      	y				=	-  4/ 5						
				y	=				-  1/ 5						
	x=	  1/ 3	y=	-  1/ 5	z=	  2/ 5