Solving Equations Using Multiplication and Division

In Lesson 3.2, students will review the steps of solving problems of the form ax = c and x/b = d. There are a few basic steps to follow, and I am requiring that each problem includes a check step, as this will become necessary when we get to more complicated math problems.

Here is a review of the steps that I require to get full credit for solving problems of this nature:

1. Write down the problem.

2. Show the multiplication or division you wish to do to both sides of the equation.

3. Simplify the equation.

4. Box (or circle) your final answer.

5. Show the check step.

Check step procedure:

1. Write the original problem.

2. Show the substitution for the variable by replacing it with the answer you got--use parentheses to show this substitution.

3. Simplify your work.

4. If the two sides of the equation are equal, place a check mark by the equation and proceed to the next problem.

Homework tonight: Lesson 3.2 (24 - 42, divisible by 3--show check steps, and 50 - 56 even)