Question 461160
5	x	+	5	y	=	50	.............1	
10	x	+	6	y	=	84	.............2	
								
multiply (1)by 		-6						
Multiply (2) by		5						
-30	x		-30	y	=	-300		
50	x		30	y	=	420		
Add the two equations								
20	x				=	120		
/	20							
x	=	6						
plug value of 			x	in (1)				
5	x	+	5	y	=	50		
30		+	5	y	=	50		
			5	y	=	50		-30
			5	y	=	20		
y=4