Algebra

posted by Clare

Hi this question was already asked but there is still no correct answer. I can't seem to solve this for x correctly...I got 128 over 55 as an answer which can't be correct. Please help me find the correct answer! Thanks The equation is:
.05x-.6(x+2)=.08
Please show the work as well as the answer. Thanks again.
-C

  1. Ms. Sue

    .05x-.6(x+2)=.08

    0.05x - 0.6x + 1.2 = 0.08

    -0.55x = 0.08 - 1.2

    -0.55x = -1.12

    x = -1.12 / -0.55

    x = 2.036

    See if that solution works.

  2. Clare

    No that's what someone else said and it doesn't work!! And I thought -.6 x 2= -1.2 not positive 1.2.

  3. Ms. Sue

    You're right. My sign is wrong.

  4. Brian

    0.05x-0.6(x+2)=0.08
    Multiply all terms by 100
    5x-60(x+2)=8
    5x-60x-120=8
    -55x=128
    x= -(128/55)
    All you had to do was put the negative sign in the final answer.

  5. Clare

    But that still doesn't work in the equation...does it?

  6. Clare

    Oh I guess it does. Thanks!

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