 # 0.3q+0.3=4.2

## Enter Equation or Inequality

Solve the following equation
0.3q+0.3=4.2

Solve for q
0.3q + 0.3 = 4.2

## Group constants

Group our constants 0.3 and 4.2.
subtract 0.3 from both sides
0.3q + 0.3 - 0.3 = 4.2 - 0.3

0.3q = 3.9

## Divide each side of the equation by 0.3

 0.3q 0.3
 =
 3.9 0.3

q = 13

q = 13

### 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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### 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

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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