# Algebra Formulas for the PRAXIS® Core Academic Skills for Educators Mathematics Test

In the revised “PRAXIS Core Academic Skills for Educator: Mathematics” Test (5733), algebra is no longer as scary as it was. It used to represent 30% of the test, but, as a regular classroom educator, you probably won’t teach complex algebra topics. That’s why the percentage of algebra questions in the revised test dropped to 20%, becoming the third area in importance, after Number and Quantity; and Data Interpretation and Representation, Statistics and Probability.

In the following chart, you’ll find the most essential Algebra formulas you’ll use during the “PRAXIS Core Academic Skills for Educator: Mathematics” Test (5733).

Data Interpretation and Representation, Statistics, and Probability Formulas for the PRAXIS Core Academic Skills Test

Geometry Formulas for the PRAXIS Core Academic Skills Test

Number and Quantity Formulas for the PRAXIS Core Academic Skills Test

## Algebra Formulas for the Praxis Mathematics Test

Category Formula Symbols Comment
Algebra $$x+a=b \Rightarrow x=b-a$$
$$x-a=b \Rightarrow x=b+a$$
$$x \cdot a=b \Rightarrow x=b \div a$$
$$x \div a=b \Rightarrow x=b \cdot a$$
$$x^a=b \Rightarrow x = \sqrt[a]{b}$$
$$\sqrt[a]{x}= b \Rightarrow x= b^a$$
$$a^x=b \Rightarrow x=\frac{log\ b}{log\ a}$$
a, b = constants
x = variable

Algebra $$a+b=b+a$$
$$a \cdot b = b \cdot a$$
a, b = any constant or variable Commutative
Property
Algebra $$a+(b+c)=(a+b)+c$$
$$a \cdot (b \cdot c)=(a \cdot b) \cdot c$$
a, b, c = any constant or variable Associative
Property
Algebra $$a \cdot (b+c) = a \cdot b + a \cdot c$$ a, b, c = any constant or variable Distributive
Property
Algebra $$y=mx+b$$ y = dependent variable
m = slope
x = independent variable
b = y-axis intercept
Linear Equation in
Slope-Intercept Form.
Try to convert any given
linear equation to this
format.