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-a=(41/6-31/15)/(7/5) equation

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Numerical solution:

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The solution

You have entered [src]
            31
     41/6 - --
            15
-a = ---------
        7/5   
$$- a = \frac{- \frac{31}{15} + \frac{41}{6}}{\frac{7}{5}}$$
Detail solution
Given the linear equation:
-a = (41/6-31/15)/(7/5)

Expand brackets in the right part
-a = 41/6-31/157/5

Looking for similar summands in the right part:
-a = 143/42

Divide both parts of the equation by -1
a = 143/42 / (-1)

We get the answer: a = -143/42
The graph
Sum and product of roots [src]
sum
-143 
-----
  42 
$$- \frac{143}{42}$$
=
-143 
-----
  42 
$$- \frac{143}{42}$$
product
-143 
-----
  42 
$$- \frac{143}{42}$$
=
-143 
-----
  42 
$$- \frac{143}{42}$$
-143/42
Rapid solution [src]
     -143 
a1 = -----
       42 
$$a_{1} = - \frac{143}{42}$$
a1 = -143/42
Numerical answer [src]
a1 = -3.4047619047619
a1 = -3.4047619047619