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Algebra

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40=-0.2x+45
i cant seem to solve this problem.

  • Algebra -

    40=-0.2x+45

    Subtract 45 to both sides

    -5=-0.2x

    now divide -0.2 to both sides

    -5/-0.2=x

    A negative divdes by a negative gives you a positive

    5/0.2=x

    You can leave that like that or find the decimal form of it.

  • Algebra -

    40=-0.2x+45

    0.2x = 45 - 40
    0.2x = 5
    x = 5/0.2
    x = 25

    Checking:

    40 = -0.2x + 45
    40 = -0.2 (25) + 45
    40 = -5 + 45

  • Algebra -

    Thank you sooo much!

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