# college algebra

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x/2-x/x-4=-4/x-4=-4x^2/2

• college algebra -

• college algebra -

in the problem there are no brackets
x over x minus x/over x-4 equal -4 over x-4 solve each rational equation if it has no equation state so. simply with necessary

• college algebra -

So it is

[x/(2-x)]/(x-4) = -4/(x-4) ?

Where does the third equality come from ?

Can you see why brackets are absolutely necessary here?

ok, first multiply both sides by x-4 to get
x/(2-x) = -4
now multiply both sides by 2-x
x = -4(2-x)
x = -8 + 4x
-3x = -8
x = 8/3

Lastly, what does "...if it has no equation state so. simply with necessary " mean ?

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