Enter Equation or Inequality
  

Solve the following equation

13c+100=18c

Solve for c

13c + 100 = 18c

Group variables

Group our variables 13c and 18c
subtract 18c from both sides

13c + 100 - 18c = 18c - 18c

Cancel 18c on the right side:

-5c + 100 = 0

Group constants

Group our constants 100 and 0.
subtract 100 from both sides

-5c + 100 - 100 = 0 - 100

Cancel 100 on the left side:

-5c = -100

Divide each side of the equation by -5

-5c
-5
=
  
-100
-5

c = 20

Final Answer

c = 20





What is the Answer?
c = 20
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
Example calculations for the Equation and Inequalities Calculator
Equation and Inequalities Calculator Video

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