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Math Help - Algebra

  1. #1
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    Algebra

    could someone help me to understand,

    algebra question below and I don't know how to solve for x, with x = -11

    1/2(5-x) = -3

    I'm not sure what to do with the half, do I subract it from -3 or devide? not happy, been doing really well learning from scratch and I've hit this wall.

    Leg up?
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  2. #2
    Member Ruun's Avatar
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    Hi!

    Short explanation:

    \frac{1}{2} is multplying so it should divide  -3

    Reasoning

    Your \frac{1}{2} is multiplying (5-x), so what you should do it's multiplying by 2 both members (It won't change anything in our case, think 1=1 it's the same as 1\cdot2=1\cdot2 . Then you have 2\cdot\frac{1}{2}\cdot(5-x)=2\cdot(-3).
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