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3 years ago

(X-4)/(x+1)-x/(x-1)=0

Mathematics

1 answer:

GREYUIT [131]3 years ago

5 0

Answer:

x = 2/3

Step-by-step explanation:

$\dfrac{x-4}{x+1}-\dfrac{x}{x-1}=0\\\\\dfrac{(x-4)(x-1)-x(x+1)}{(x+1)(x-1)}=0\\\\\dfrac{-6x+4}{x^2-1}=0 \quad\text{0 when the numerator is zero}\\\\x-\dfrac{2}{3}=0 \quad\text{divide by $-6$}\\\\x=\dfrac{2}{3}$

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3 years ago

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Answer:

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Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x. Do the opposite of PEMDAS.

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Step-by-step explanation:

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