algebra

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i am having problems with this current equation.

10/(5+x)= 12

so far i have tried to multiply both sides by x+5 but then my answer is x = 4.16... and im thinking its wrong. Thanks in advance and if possible answer with a explaination would be greatly appreciated so i can so similar problems by myself

  • algebra -

    10/(5+x)= 12

    10 = 12(5+x)
    10 = 60 + 12x
    10 - 60 = 12x
    -50 = 12x
    -4.16666 = x
    -4.17 = x

    I got about the same answer. :-)

    Change the signs and round off.

    If you substitute -4.1666 for x in the equation, you'll find it's right.

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