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Question:

thomasid
thomasid
Student
College - Freshman

-2(x + 5 × 7 + 3)

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Posted by thomasid on Friday July 3, 2009 at 3:35 PM and tagged with math, need help on how to solve this equation.

Answers:

  1. neela
    neela Teacher
    Graduate School

    Simplfy -2(x + 5 × 7 + 3).

    Or Simplify -2(x+5*7+3) . The editted form is due to me please.

    To simplify we apply the BODMAS( Bracket, Order(means degree or exponent), Division or Multiplication with equal prioriy, Addtion or Subtraction with equal priority), the rule of priority  here.

    In the given problem, Bracket is first.Inside the bracket Multiplication is first:

    So, in the expression,-2(x+5*7+3), take the bracket first. And in the bracket ,inside, Multiplication  of 5*7 is first:

    -2(x+35+3).

    Simplify inside the bracket: 35+3 =38:

    -2(x+38).

    Multiply by -2 of outside the bracket each of the terms  inside the bracket. This is to say to distribute the operation of mutiplication over the two terms inside the bracket, keeping in mind the rule of sign of two terms with different sign(+or-) in multiplication  returning a negative product.

    -2x-76 and this is the final simplest form.

    Hope this would help.

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    Posted by neela on Friday July 3, 2009 at 6:25 PM


  2. richaojha Student
    High School - 9th Grade

    -2(x + 5 * 7 + 3)

    -2(x + 35 + 3)

    -2(x + 38)

    -2x - 76

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    Posted by richaojha on Saturday July 4, 2009 at 10:28 PM