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((x+9)/3)-(x/7)=2 equation

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Numerical solution:

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The solution

You have entered [src]
x + 9   x    
----- - - = 2
  3     7    
$$- \frac{x}{7} + \frac{x + 9}{3} = 2$$
Detail solution
Given the linear equation:
((x+9)/3)-(x/7) = 2

Expand brackets in the left part
x/3+9/3)-x/7 = 2

Looking for similar summands in the left part:
3 + 4*x/21 = 2

Move free summands (without x)
from left part to right part, we given:
$$\frac{4 x}{21} = -1$$
Divide both parts of the equation by 4/21
x = -1 / (4/21)

We get the answer: x = -21/4
The graph
Sum and product of roots [src]
sum
-21/4
$$- \frac{21}{4}$$
=
-21/4
$$- \frac{21}{4}$$
product
-21/4
$$- \frac{21}{4}$$
=
-21/4
$$- \frac{21}{4}$$
-21/4
Rapid solution [src]
x1 = -21/4
$$x_{1} = - \frac{21}{4}$$
x1 = -21/4
Numerical answer [src]
x1 = -5.25
x1 = -5.25