8th grade math

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How do you simplify problems like

8x + 3 (7x-6)

-9(4x-8) + 2x?

Please help!!
Thank you!

  • 8th grade math -

    oh yeah and 4(1 + 9x) can u helo with this one too please

  • 8th grade math -

    I'll do the first one.

    8x + 3 (7x-6)

    8x + 21x - 18

    29x - 18

    I'll be glad to check your answer for the second problem.

  • 8th grade math -

    oooh i get the first one now. But wat i am asking is how you do the second problems that are like the second and the third problem.

  • 8th grade math -

    You try the second problem. Do it the same way I did the first problem.

  • 8th grade math -

    i just want you to know that i might be more confused with this because i am a 7th grader and i am in accelerated math so that is why i am doing 8th grade math and this is really hard for me right now so yeah

  • 8th grade math -

    If you can't at least try to do the second problem, you don't belong in accelerated math.

  • 8th grade math -

    ummm is it 6x - 17? im not sure if this is right

  • 8th grade math -

    yeah i did ask my teacher if i could go back to regular math but then she decided that she will decide on my quiz score and i got a good grade

  • 8th grade math -

    and for the third problem is it this i will do it in the steps:

    4( 1+9x)
    4(1)+ 4(9x)
    4 + 36x

    is this correct?

  • 8th grade math -

    The third problem is right.

    For the second problem:

    -9(4x-8) + 2x

    Start by multiplying -9 times 4x and -9 times -8.

  • 8th grade math -

    ooohhh ok so the second problem would be -36x + 72 + 2x right?

  • 8th grade math -


  • 8th grade math -

    oh i get that now. thank you!

  • 8th grade math - correction -


    We forgot to add 2x

    -34x + 72

  • 8th grade math -

    oh ok i get it now. thank you!!

  • 8th grade math -

    You're welcome.

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