Linear Equation for First Degree Addition, Formulas & Calculator

First degree equations can be calculated using one of the following 2 formulas: one if you know the result and the value of "x",
another if you know the result and the value of "y".

Formula Knowing the Result and the Value "x"

If you know the result and the "x" value, you can calculate "y" using the following formula:

$$x + y = R$$

"x" value and Result

Equation Result

Where:

$$x = "Known value"$$
$$y = "Value to calculate"$$
$$R = "Known value of the result"$$

Formula Knowing the Result and the Value "y"

If you know the result and the "y" value, you can calculate "x" using the following formula:

$$x + y = R$$

"x" value and Result

Equation Result

Where:

$$x = "Value to calculate"$$
$$y = "Known Value"$$
$$R = "Known value of the result"$$

First Degree Equation Definition

It is an equality which has at least one unknown value that must be cleared,
it can have an infinite number of possible variables, and can be accommodated in different ways but it must always be an equality.
All first degree equations have exponent 1.

Equation Definition

It is an equality which has at least one unknown value that must be cleared,
these unknowns values are represented by letters.

Formula Definition

It is a representation of a rule or a general principle using letters. (Algebra, A. Baldor)
When describing formulas in plural, it is also valid to say "formulae".

WikiFormulas.com is a database of embeddable formulas, equations and calculators. You are allowed to use our calculators in any project as long as you give attribution.