Decimal Equations - YourTeacher.com - Math Help

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Uploaded by on Oct 29, 2007

For a complete lesson on decimal equations, go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn that if one or more decimals appear in an equation, the first step is to get rid of the decimals by multiplying both sides of the equation by the appropriate power of 10. For example, if the equation reads x + .7 = .9x -- 3, since both decimals are taken to the tenths place, the decimals can be removed by multiplying both sides of the equation by 10, to get 10x + 7 = 9x - 30. Note that all solutions in this lesson are integers.

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All Comments (9)

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  • Why is there diaper advertisements on a video targeted for middle schoolers?

  • @nodice100 lmaooo 

  • @boredkmd123 x= ur mom

  • @boredkmd123 so many parentheses.

  • -6(x+1)+2(3-4x=1/3(12-3x)+(-7)

    how do you solve this equation?

  • it seems easy and understandable when you do it but then i forget and get stuck... nice video

  • you add ten to each side so u can move the decimal over.

    Ex: 24.5 (10) = 245.

  • Nicely Done

    .anyything starts with a tenth and could last until your ancestors reach heaven.

    He's just trying to get you to the starting line.

  • WHy by ten on each side...where you get ten from?

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