GED Math Review: Variables and Algebraic Expressions

Questions:

Translate the following into algebraic expressions. Use the variable x to represent the unknown number in each expression unless otherwise noted.

1. the difference between a number and 2
2. twice a number, increased by 4
3. 9 less than three times a number
4. five times the sum of a number and -3
5. 10 less than the product of 4 and a number

Answer:

1. x - 2
2. 2x + 4
3. 5(x + (-3))
4. 5(x + (-3))
5. 4x - 10

Reference:

Complete Test Preparation for the GED Test 2014 by Steck-Vaughn