Question 592057
3	x	+	5	y	=	-18	.............1	
4	x		-10	y	=	-21	.............2	
Eliminate	y							
multiply (1)by		2						
Multiply (2) by		1						
6	x		10	y	=	-36		
4	x		-10	y	=	-21		
Add the two equations								
10	x				=	-57		
/	10.00							
x	=	-5.70						
plug value of			x	in (1)				
3.00	x	+	5.00	y	=	-18.00		
-17.10		+	5.00	y	=	-18.00		
			5.00	y	=	-18.00	+	17.10
			5.00	y	=	-0.90		
				y	=	-0.18