Solving Systems with Fractions in the Equations
Systems of equations that contain fractions can be difficult to work with. Clearing the fractions in such a system by multiplying each equation by the least common denominator of the fractions in the equation can be a go..
Solving Systems with Substitution
An introduction to using the algebraic method of substitution to solve a system of equations in which one of the equations is not in slope-intercept form.
Solving Systems with Substitution Example
The substitution method can be used when one of the equations in a system has been solved for one of its variables. An example demonstrates.
Solving a Basic Algebraic Equation
The definition of an algebraic equation and how to solve it, using a practical example.
Solving a Complicated Cash Register Problem
A store manager needs to calculate how many bills of each denomination she can get with $100 in order to begin the day with enough change in her cash register, knowing she needs only one $20 bill. The solution is present..
Solving a Complicated Mixture Problem
A complicated word problem involving percentages is broken into simpler parts and a solution found.
Solving a Complicated Principal, Rate, and Interest Problem
Two loans with different interest rates and terms are compared to find the one that fits with the borrower's budget for interest.
Solving a Consecutive Number Problem
Writing an equation to solve a word problem, then solving the equation and checking the answer.
Solving a Mixture Problem Using One Variable
A word problem involving mixing a solution that needs to be 25 percent chlorine is analyzed, the unknown identified, and a one-variable equation written to solve the problem.
Solving a Mixture Problem Using Two Variables
A word problem involving mixing a solution that needs to be 25 percent chlorine is analyzed, the unknown identified, and a two-variable system of equations written to solve the problem.