Chapter 3, Lesson 3


3-3.A translate word phrases into mathematical expressions
Write each word phrase as a mathematical expression.
a.
three more than the product of five and a number, n
b. nine less than twice a number, n

3-3.B evaluate algebraic expressions
Evaluate each expression for the indicated value of the variable.
a.
6x — 10 for x = 3 b. 9m + 4 for m = —5