definitions

Variables	*Symbols used to take the place of numbers in algebraic expressions and equations. Examples of variables are n, x, and y.*
Terms	*Letters, symbols, and numbers used alone or in combination, in algebraic expressions and equations. Examples of terms are 3x, 5wy,* and 2a.**
Expressions	An algebraic expression contains one or more terms and one or more operations. Examples of expressions are 5x + 2 and 4y - 6z.
Equations	An algebraic equation contains one or more terms, and one or more operations and an equal sign. An example of an equation is 3x -2 = 19.
Coefficients	A coefficient is a number by which variables or products of variables are multiplied. Examples of coefficients are in orange in these terms: 5x, 3ab, and -8y.

Identify the following items.