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Solution - Linear equations with one unknown

x=4
x=-4

Step by Step Solution

Rearrange:

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

                     -7*x+30-(58)=0 

Step by step solution :

Step  1  :

Pulling out like terms :

 1.1     Pull out like factors :

   -7x - 28  =   -7 • (x + 4) 

Equation at the end of step  1  :

Step  2  :

Equations which are never true :

 2.1      Solve :    -7   =  0

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

Solving a Single Variable Equation :

 2.2      Solve  :    x+4 = 0 

 
Subtract  4  from both sides of the equation : 
 
                     x = -4

One solution was found :

                   x = -4

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