There will be one solution. To solve that:
1. Get the y alone by switching the places.
6x+y=2 > y=2-6x 
-18x+3y=12 > 3y=12-18x > Then divide 3 on each number > y=4-6x
After doing that, you can solve this in graphing or algebra way.
Ima do the algebra way: 
SO we have 2 system of equations. Now pick one equestion.
I will pick, y=2-6x. Now Ima replace the Y with the other equation y=4-6x >   
4-6x=2-6x.
Now solve. And get >  0 aka Infinite Solution.
        
                    
             
        
        
        
Ya is = 10x-28 see the picture for explanation
        
             
        
        
        
Answer:
72 55/76
Step-by-step explanation:
it's right trust me <3
 
        
                    
             
        
        
        
Answer:
 The volume of the triangular prism would be 210.
Step-by-step explanation:
Formula:
Volume of a triangular prism = (1/2) x Base area x Height
or
V = 1/2 x B x H
Find the Base area = l x w
Base area = (10 x 7) 70
Base area = 70 sq.m
V = (1/2) x (70) x 6
V = <em>210</em>