(3x-7)+(-4x-8)........ what is the sum of this pls

Mathematics

1 answer:

yarga [219]3 years ago

6 0

Answer:

(3x-7)+(-4x-8)

3x-7-4x-8

3x-4x-7-8

-x-15

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Which expression is equivalent to the following complex fraction?

Virty [35]

Answer:

$\dfrac{-4x+7}{2(x-2)}$

Step-by-step explanation:

Write the terms of numerator and denominator using a common denominator.

$\dfrac{\dfrac{3}{x-1}-4}{2-\dfrac{2}{x-1}}=\dfrac{\left(\dfrac{3-4(x-1)}{x-1}\right)}{\left(\dfrac{2(x-1)-2}{x-1}\right)}}=\boxed{\dfrac{-4x+7}{2(x-2)}}$