Solution - Linear equations with one unknown

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                     -9*(-v-10)-(-10-v)=0 

Step by step solution :

Step  1  :

Step  2  :

Pulling out like terms :

 2.1     Pull out like factors :

   -v - 10  =   -1 • (v + 10) 

Equation at the end of step  2  :

  (0 -  -9 • (v + 10)) -  (-v - 10)  = 0 

Step  3  :

Pulling out like terms :

 3.1      Pull out     v+10 

Note that  -v-10 =(-1)• v+10 
After pulling out, we are left with :
      (v+10) • ( 9  *  (-1) +( (-1) ))

Equation at the end of step  3  :

  -10 • (v + 10)  = 0 

Step  4  :

Equations which are never true :

 4.1      Solve :    -10   =  0

This equation has no solution.
A a non-zero constant never equals zero.

Solving a Single Variable Equation :

 4.2      Solve  :    v+10 = 0 

 Subtract  10  from both sides of the equation : 
                      v = -10

One solution was found :