Evaluating expressions in one variable

The first instance of the Evaluating expressions in one variable exercise falls under the Algebra I Math Mission. This exercise help in the basic understanding of Algebra.

Types of problems
1. Evaluate the following expression when x = a number - This problem gives you an expression with an unknown and a number added of subtracted to that unknown(x). The student is to substitute the x value into the expression and evaluate it.

Strategies
It is not so easy to the the speed badges in this skill. Substituting the x into the expression and evaluating it may take some time. However, its not hard too.