
Using Multiplication and DivisionAfter studying this lesson, you will be able to:
Review of Steps for Solving Equations: 1. Remove parentheses by multiplying (this step is not always necessary) 2. Collect like terms on each side of the equal sign 3. Isolate the variable by undoing the operation 4. Check by substituting the solution into the original equation
Example 1
Example 2
Check: substitute for 4 y 4 in the equation where we converted to improper fractions
Example 3
Check by substituting 10 in the original equation 10 (10) = 100 100 = 100 