Here is what i learned in accordance to the order in which to solve an equation:
Parenthisis
Exponenets
Muliplication
Division
Addition
Subtraction
I use the acronym: Please Excuse My Dear Aunt Sally
I hope this helped you:/
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Whenever evaluating expressions that do not have parentheses (brackets) nor indices.
The nth term of an arithmetic sequence = a + [(n - 1) X d]
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In math, the purpose of Cramer's rule is to be able to find the solution of a system of linear equations by using determinants and matrices. Cramer's rule makes it easy to find a system of equations that have many unknown variables.
The chain rule.