Question 428381
x+4y=40	.............1	
x+2y=11	.............2	
								
multiply (1)by 		1						
Multiply (2) by		-2						
x+4y=40		
-2x-4y=-22		
								
Add the two equations
x=-18		
								
plug value ofxin (1)				
								
x+4y=40		
-18+4y=40		
4y=40+18
4y=58		
y=14.50