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Algebra

posted by on .

I am completely lost...please anyone can anyone help?

x = 2+y x and 2 are in inches then it says solution y=x(in) - a(in)

  • Algebra - ,

    They're just telling you the units. Algebraically,

    x = 2 + y
    y = x - 2
    and all terms are in inches (in).

    Carrying those in around may seem trivial here, but when you start doing problems in physics and chemistry, knowing the units can be a life saver!

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