How do you solve a double sided variable?

I am not sure what you are asking.

Even so, since this is not my area of expertise, I searched Google under the key words "'double sided variable' math" to get this possible source:

http://en.wikipedia.org/wiki/Math_24

I hope this helps. Thanks for asking.

any example?

Sure! Let's consider an example of solving a double sided variable equation.

Let's take the equation: 3x + 2y = 10.

To solve this equation, we want to find the values of x and y that satisfy this equation.

One approach to solving this type of equation is to isolate one variable on one side of the equation and solve for the other variable.

Let's isolate x in terms of y:

3x = 10 - 2y

Dividing by 3 on both sides gives us:

x = (10 - 2y) / 3

Now we have an expression for x in terms of y.

Similarly, let's isolate y in terms of x:

2y = 10 - 3x

Dividing by 2 on both sides gives us:

y = (10 - 3x) / 2

Now we have an expression for y in terms of x.

This means that for any given value of x, we can substitute it into the expression for y and vice versa to find the corresponding value that satisfies the equation.

For example, if we let x = 2, we can substitute it into the expression for y:

y = (10 - 3(2)) / 2
y = (10 - 6) / 2
y = 4 / 2
y = 2

So, when x = 2, y = 2 is a solution to the equation 3x + 2y = 10.

In general, solving a double sided variable equation involves isolating one variable, finding its expression in terms of the other variable, and vice versa. Substituting values into the expressions allows us to find solutions that satisfy the equation.