Enter Equation or Inequality
  

Solve the following equation

7x+x+1=9

Solve for x

7x + x + 1 = 9

Group the x terms on the left:

(7 + 1)x = 8x

Form modified equation

8x + 1 = + 9

Group constants

Group our constants 1 and 9.
subtract 1 from both sides

8x + 1 - 1 = 9 - 1

Cancel 1 on the left side:

8x = 8

Divide each side of the equation by 8

8x
8
=
  
8
8

x = 1

Final Answer

x = 1





What is the Answer?
x = 1
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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