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The details depend on the type of equation you want to solve. A typical algebra textbook can teach you the details. But briefly, in the simplest cases at least, you basically want to "isolate" a variable, eliminating anything that is NOT the variable. And anything you do on one side of the variable, you need to do on the other side as well. Here is an example:2x + 1 = 15

Since the idea is to have "x" alone on one side, first you might want to get rid of the 1. Subtract one on each side, to get:

2x = 14

Next, to get rid of the 2, you divide both sides by 2, with the result:

x = 7

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Q: Solving equations with one variable
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Related questions

What is a method for solving a system of linear equations in which you multiply one or both equations by a number to get rid of a variable term?

It is called solving by elimination.


What is the goal of solving equations?

you want to isolate the variable(s) on one side and the constant or number on the other side.


How does writing equivalent equations help you solve a system of equations?

You can write an equivalent equation from a selected equation in the system of equations to isolate a variable. You can then take that variable and substitute it into the other equations. Then you will have a system of equations with one less equation and one less variable and it will be simpler to solve.


What is the elimination methods?

A method for solving a system of linear equations; like terms in equations are added or subtracted together to eliminate all variables except one; The values of that variable is then used to find the values of other variables in the system. :)


What are math concepts?

There are too many to list. In algebra, there is factoring, graphing, solving equations of 1 variable, solving equations of 2 variables, all operations with variables (addition, subtraction, mult, div, exponentials, etc) and more. And that is just algebra.


Describe the procedure used to solve an equation for a variable?

It very much depends on the equation. The procedure for solving an equation with just one variable is so very different from the procedure for finding solutions to non-linear equations in several variables.


How do you create a crossword for linear equations in one variable?

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How are the rules for solving inequalities similar to those for solving equations?

Solving inequalities and equations are the same because both have variables in the equation.


How do you solve systems by elimination?

Select one equation from a system of linear equations. Select a second equation. Cross-multiply the equations by the coefficient of one of the variables and subtract one equation from the other. The resulting equation will have one fewer variable. Select another "second" equation and repeat the process for the same variable until you have gone through all the remaining equations. At the end of the process you will have one fewer equation in one fewer variable. That variable will have been eliminated from the system of equations. Repeat the whole process again with another variable, and then another until you are left with one equation in one variable. That, then, is the value of that variable. Substitute this value in one of the equations from the previous stage to find the value of a last variable to be eliminated. Work backwards to the first variable. Done! Unless: when you are down to one equation it is in more than one variable. In this case your system of equations does not have a unique solution. If there are n variables in your last equation then n-1 are free to take any value. These do not have to be from those in the last equation. or when you are down to one variable you have more than one equation. If the equations are equivalent (eg 2x = 5 and -4x = -10), you are OK. Otherwise your system of equations has no solution.


Can all quadratics be solved by completing the square?

Completing the square is one method for solving a quadratic equation. A quadratic equation can also be solved by factoring, using the square roots or quadratic formula. Solving quadratic equations by completing the square will always work when solving quadratic equations-You can also use division or even simply take a GCF, set the quantities( ) equal to zero, and subtract or add to solve for the variable


What is is an equation with more than one variable called?

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How do you solve a system of equations by graphing?

Write each equations in popular form. ... Make the coefficients of one variable opposites. ... Add the equations ensuing from Step two to remove one variable. Solve for the last variable. Substitute the answer from Step four into one of the unique equations.