Question 566545
Fathers			x					
Sons			y					
								
1	x	+	1	y	=	75	.............1	
2	x	+	1.5	y	=	127.5	.............2	
Eliminate y								
multiply (1)by 		-1.5						
Multiply (2) by		1						
-1.5	x		-1.5	y	=	-112.5		
2	x		1.5	y	=	127.5		
Add the two equations								
0.5	x				=	15		
/	0.5							
x	=	30						
plug value of 			x	in (1)				
1	x	+	1	y	=	75		
30		+	1	y	=	75		
			1	y	=	75		-30
			1	y	=	45		
				y	=	45		
Fathers			30					
Sons			45				
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