##### Enter Equation or Inequality

Solve the following equation

20+10w=1000-15w

Solve for w

20 + 10w = 1000 - 15w

##### Group variables

Group our variables 10w and -15w

10w + 20 + 15w = -15w + 1000 + 15w

25w + 20 = 1000

##### Group constants

Group our constants 20 and 1000.
subtract 20 from both sides

25w + 20 - 20 = 1000 - 20

25w = 980

 25w 25
 =
 980 25

w = 39.2

w = 39.2

w = 39.2
##### How does the Equation and Inequalities Calculator work?
Free Equation and Inequalities Calculator - Solves an equation or inequality with 1 unknown variable and no exponents as well as certain absolute value equations and inequalities such as |x|=c and |ax| = c where a and c are constants. Solves square root, cube root, and other root equations in the form ax^2=c, ax^2 + b = c. Also solves radical equations in the form asqrt(bx) = c. Also solves open sentences and it will solve one step problems and two step equations. 2 step equations and one step equations and multi step equations
This calculator has 1 input.

### What 3 formulas are used for the Equation and Inequalities Calculator?

One Step Equations (Division): cx = b x = b/c
One Step Equations (Addition): x + c = b x = b - c
One Step Equations (Subtraction): x - c = b x = b + c

For more math formulas, check out our Formula Dossier

### What 4 concepts are covered in the Equation and Inequalities Calculator?

equation
a statement declaring two mathematical expressions are equal
equation and inequalities
unknown
a number or value we do not know
variable
Alphabetic character representing a number