Question 731618
x= 	pounds of	prunes						
y=	pounds of	no of mechanics						
 								
1.00	x	+	1.00	y	=	20.00	.............1	
Total value								
3.50	x	+	2.95	y	=	66.15	.............2	
Eliminate	y							
multiply (1)by		-2.95						
Multiply (2) by		1.00						
-2.95	x		-2.95	y	=	-59.00		
3.50	x	+	2.95	y	=	66.15		
Add the two equations								
0.55	x				=	7.15		
/	0.55							
x	=	13.00						
plug value of			x	in (1)				
1.00	x	+	1.00	y	=	20.00		
13.00		+		y	=	20.00		
				y	=	20.00		-13.00
				y	=	7.00		
				y	=	7.00		
x=	13.00		pounds of	prunes				
y=	7.00		pounds of	no of mechanics				
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