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".
If you know the result and the "x" value, you can calculate "y" using the following formula:
$$x - y = R$$
$$x = "Known value"$$
$$y = "Value to calculate"$$
$$R = "Known value of the result"$$
If you know the result and the "y" value, you can calculate "x" using the following formula:
$$x - y = R$$
$$x = "Value to calculate"$$
$$y = "Known Value"$$
$$R = "Known value of the result"$$
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.
It is an equality which has at least one unknown value that must be cleared,
these unknowns values are represented by letters.
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".
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