Solving Linear Equations Part 9

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
7845 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, we learn how to solve linear equations involving decimals, fractions, and variables on both sides. The teacher demonstrates two methods: working with decimals and using the distributive property to clear all the decimals or fractions from the equation. They stress the importance of being careful when multiplying by the least common denominator or using a calculator to avoid making mistakes. The lesson ends with a reminder to always check your solution by plugging in the value of the variable into the original equation.

Lesson Description:

Part 9 of Solving Linear Equations in one variable. Covers solving linear equations using the multiplication property of equality and how to clear denominators when fractions and decimals are involved.

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Questions answered by this video:
  • How can you solve an equation with decimals such as .4x + .06(30) = 9.8 and check your solution?
  • How can you solve an equation with decimals by first eliminating the decimals?
  • What can you multiply an equation by to get rid of all of the decimals?
  • How can you solve an equation with decimals such as .15x + .20(4) = .17(x + 4) and check your solution?
  • Is there an easy way to solve equations with decimals in them?
  • Staff Review

    • Currently 4.0/5 Stars.
    This final installment of the solving linear equations series shows more example problems of equations, some of which include decimals. Multiple methods are shown, and all steps are shown and explained very clearly.