Answer:
n=16
Step-by-step explanation:
Let's solve your equation step-by-step.
12−2(n−1)=−18
Step 1: Simplify both sides of the equation.
12−2(n−1)=−18
12+(−2)(n)+(−2)(−1)=−18(Distribute)
12+−2n+2=−18
(−2n)+(12+2)=−18(Combine Like Terms)
−2n+14=−18
−2n+14=−18
Step 2: Subtract 14 from both sides.
−2n+14−14=−18−14
−2n=−32
Step 3: Divide both sides by -2.
−2n
/−2  =  −32
/−2
n=16
 
        
             
        
        
        
Answer:
Dividing -2 on both sides
Step-by-step explanation:
 
        
                    
             
        
        
        
C = $7s
independent variable ie the changing variable is s
dependent variable ie the non changing variable is c
        
                    
             
        
        
        
Answer: 1 / 5 of the total distance. 
Step-by-step explanation:
They traveled 7/10 of the distance on Saturday. This means that on Saturday, the fraction left was:
= 1 - 7/10
= 3/10 of the distance
On Sunday, they traveled 2/3 of this remaining distance. The fraction of the distance traveled is therefore:
= 2/3 * 3/10
= 6 / 30
= 1 / 5 of the total distance. 
 
        
             
        
        
        
A) x+0.25>-8
         -0.25    -0.25
x>7.75
B)  -1<x-10
      +10        +10 
9<x