Answer:
Step-by-step explanation:
 
        
             
        
        
        
15 : 5 = 3$
Total cost : quantity = single cost
        
             
        
        
        
To write a linear equation in standard form, move each variable term to the left side of the equation and simplify.
Ax+By=C
Since x is on the right side of the equation, switch the sides so it is on the left side of the equation.
710x+10=y
 
        
             
        
        
        
1) x= 50
2) w= 15
3) z=27
4) m= 8