This free online linear equation calculator will use the distributive and equality properties  as well as combining like terms and inverse operations  to solve math linear equations having one variable.
Specifically, this math equation solver will handle multiple distributions (maximum of 2 terms within each parenthesis) and simplifications involving the elimination of fractions and decimals (not radicals or exponents).
Plus, unlike other online math solvers, this calculator will show its work and give a detailed stepbystep explanation as to how it arrived at the result. This makes the solver especially useful for checking the answers you derive from solving the equations manually.
A linear equation is an expression that can be written in the form ax+b=0, where a and b are constants and x represents an unknown variable that, once found, will make the expression true. The following are some basic examples of linear equations having one variable:
1  x  +  3  =  2  x    4  
2  4  5 
Solving linear equations is a process aimed at getting the variable by itself on one side of an equal sign and everything else on the other side. In order to explain how to solve linear equations, I will use an example equation that contains all 4 types of terms that can be handled by the linear equation solver.
Example equation:  3(x1)+1/2=.25+4  
First use the distributive property to get rid of the parenthesis:  3(x1) = 3x3  
After removing parenthesis we are left with:  3x3+1/2=.25+4  
Remove the fractions by multiplying both sides of the equation by 2 (least common multiple of all denominators in equation):  2(3x3+1/2)=2(.25+4)  
After multiplying both sides by 2 we are left with:  6x6+1=0.5+8  
Remove decimals by multiplying both sides of the equation by 100:  100(6x6+1)=100(0.5+8)  
After multiplying both sides by 100 we are left with:  600x600+100=50+800  
Combine the like terms:  600 + 100 = 500 and 50 + 800 = 850  
After combining like terms we are left with:  600x500=+850  
Add 500 to both sides of the above equation to get constants on right side:  500 + 500 = 0 and 850 + 500 = 1350  
After adding 500 to both sides we are left with:  600x=1350  
Get the variable by itself by dividing both sides by 600: 


After dividing both sides by 600 we are left with: 


Simplify the result: 

Regardless of which method or tool you use to solve linear equations, you should always check your results by substituting the result for the variable and seeing if the resulting equation proves to be true. After all, humans create math solvers, and humans make mistakes.
In order to make sure our answer to the above example linear equation is in fact a solution, let's substitute 9/4 for x and check to see if the resulting equation proves to be true:
With that, let's use the Linear Equation Solver for solving linear equations using the distributive property, the addition, subtraction, multiplication, and division properties of equality, as well the necessary inverse operations.

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