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3 years ago

What is the value of X in the equation?

Mathematics

2 answers:

Strike441 [17]3 years ago

4 0

I think that it’s 72

loris [4]3 years ago

3 0

To solve the equation -6/7 = -x/84, we are going to use cross-multiplication. To do this, we multiply the numerator of one fraction by the denominator of the other fraction and set this equal to the product of the other numerator and denominator. This is set up below:

-6(84) = 7(-x)

To simplify this equation further, we are going to perform the multiplication operation on both sides of the equation.

-504 = -7x

To simplify this equation further, we can get the variable x alone on the right side of the equation by dividing both sides by -7.

x = 72

Therefore, your answer is 72. We can check this answer by substituting 72 back into the original equation for the variable x and making sure it creates a true statement. Because -6/7 = -72/84, we know that our answer is correct.

Hope this helps!

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Answer:

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Step-by-step explanation:

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3 years ago

After sales tax, a $96 watch costs

andriy [413]

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4 0

3 years ago

Can you help me answer this question

r-ruslan [8.4K]

Division of a fraction is the equivalent of multiplying by its reciprocal
ex.
$\frac{\frac{A}{B} }{\frac{C}{D}}=\frac{A}{B} *\frac{D}{C}$
i suggest you try to remember this concept

in terms of your question

$\frac{\frac{4c-12}{4c+8}}{\frac{c-3}{c^2-4}}= \frac{4c-12}{4c+8} *\frac{c^2 -4}{c-3}$

from this point, just multiple the numerators together and denominators together, then simplify if necessary

fyi- difference of squares
$x^2-b^2 = (x-b)(x+b)$
relating that to
$c^2-4 = c^2 -2^2 = (c-2)(c+2)$

also a side note, you might want to factor out the 4 first in the top fraction

4 0

4 years ago

Solve the equation and enter the value of x below.<br> -4x-13 = 51<br> X=<br> Answer here

ololo11 [35]

Answer:

x = -16

Step-by-step explanation:

-4x - 13 = 51

-4x = 51 + 13

-4x = 64

x = -16

3 0

3 years ago

Please help me about this math

olga nikolaevna [1]

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3 years ago