# 2d+8d+3=313

## Enter Equation or Inequality

Solve the following equation
2d+8d+3=313

Solve for d
2d + 8d + 3 = 313

(2 + 8)d = 10d

10d + 3 = + 313

## Group constants

Group our constants 3 and 313.
subtract 3 from both sides
10d + 3 - 3 = 313 - 3

10d = 310

## Divide each side of the equation by 10

 10d 10
 =
 310 10

d = 31

d = 31

### 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
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1. One Step Equations (Division): cx = b x = b/c
2. One Step Equations (Addition): x + c = b x = b - c
3. One Step Equations (Subtraction): x - c = b x = b + c

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### 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