7.1 Algebraic Expressions Practice

The sum of a number and 12

14 more than x

The difference between 24 and a number

20 less than x

x fewer than 13

20 minus x

Cut 20 inches from a length of x

x more than 120

Erin is 18 years old and her younger sister Makayla is x years old. What is the difference between Erin's age and Makayla's age?

John had 78 marbles and Billy took x marbles from him.