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You get rid of everything that is NOT the variable. Be sure to do the same operation on both sides. Here is an example:2x + 3 = 15

First, you might get rid of the 3. To do this, you need to subtract 3 on both sides:

2x + 3 - 3 = 15 - 3

2x + 0 = 12

2x = 12

Note: In practice, you will often write the last step directly. The previous steps are only to clarify what is going on.

Next, divide both sides by 2:

2x/2 = 12/2

x = 6

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Q: How do you isolate a variable in an equation?
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Related questions

What is an equation with one or two variables?

When you solve a one-variable equation, your goal is to isolate the variable.To isolate the variable means to make it be alone on one side of the equals sign.In the equation shown here, you can isolate the variable by subtracting 9 from both sides of the equation and simplifying

Why do you isolate the variable on one side the the equation when solving a linear equation?

Isolating a single variable in terms of the rest of the equation provides a solution to that variable. That is, if you know the equation that equals the variable, then you can figure out its value.

What is to isolate a variable on one side of an equation?

segregation or apartheid

How do you get a variable by its self?

To isolate a variable, you need to perform inverse operations to the ones applied to the variable. This involves moving constants to the other side of the equation, and then using operations like addition, subtraction, multiplication, or division to isolate the variable on one side of the equation.

For systems in which there is no linear equation you can isolate and substitute a variable that is what in both equations?


Which operations would isolate the variable in this equation 3y - 12 14?


Why do you isolate variables for math?

You isolate variables in math because the point of an equation is to solve for the variables. By isolating the variables you have learned what that variable stands for and thus solved the equation.

Which operation would isolate the variable in this equation 51q equals 1020?

divide by 51

To use inverse operations on both sides of an equation until the variable appears by itself on one side?

Isolate the variable

What is the definition of isolate the variable?

In algebra, its to move the pieces of the equation around so that the variable is isolated to only one side of the sign

What must be done get a variable alone on one side of an equation or inequality in order to solve the equation or inequality the answeranswer has eighteen letters with s being the second?

isolate the variable

Which is the best way to solve the equation?

That depends on the equation. In general, you'll try to isolate the variable, by using operations (on both sides of the equation) that get rid of anything other than the variable, on the side the variable is on.