Math

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What is the value of x in the following problems, y=0 in all of them.

y=5+2(3+4x)
y=5-2(3+4x)
y=5-2(3+-4x)

  • Math -

    0 = 5+2(3+4x)
    Subtract 5 from both sides
    -5 = 2(3+4x)
    Distribute the 2
    -5 = 2(3) + 2(4x)
    Simplify
    -5 = 6 + 8x
    Subtract 6 from both sides
    -11 = 8x
    Divide both sides by 8.
    -11/8 = x



    y = 5-2(3+4x)
    0 = 5-2(3+4x)
    -5 = -2(3+4x)
    -5 = -6 - 8x
    1 = -8x
    -1/8 = x

    Now you try the last one

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