False Statements: They are statements where both sides of the equal sign are not of the same value.

True Statements: They are statements where both sides of equal sign are of the same value. True Statements are classified as Identity, Formula, and Equation.

Identity: A statement that is true for all values of the variables.

Formula: A special equation that uses symbols to describe a rule.

Equation: A statement that is true for some but not all values of the variables. Equations are useful for relating variables and numbers. Many word problems can easily be written down as equations with a little practice. Many simple rules exist for simplifying equations.

Examples of equations:
2 = 2
17 = 2 + 15
x = 7
7 = x
t + 3 = 8
3 × n +12 = 100
w + 4 = 12 - w
y - 1 - 2 - 9.3 = 34
3 × (d + 4) - 11 = 321 - 23