Solution - Linear equations with one unknown

x = \frac{7}{81} = 0.086

x=7/81=0.086

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 :

9^2*x-(7)=0

Step by step solution :

Step 1 :

 1.1     9 = 3²

(9)² = (3²)² = 3⁴

Equation at the end of step 1 :

  (3⁴ • x) -  7  = 0

Step 2 :

Equation at the end of step 2 :

  81x - 7  = 0

Step 3 :

Solving a Single Variable Equation :

3.1      Solve  :    81x-7 = 0

Add 7 to both sides of the equation :
                      81x = 7
Divide both sides of the equation by 81:
                     x = 7/81 = 0.086

One solution was found :

x = 7/81 = 0.086

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Terms and topics

Linear equations with one unknown