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lozanna [386]
3 years ago
5

-3x - 5=16 what does x equal?

Mathematics
2 answers:
alexandr1967 [171]3 years ago
8 0

Answer: -7

Step-by-step explanation:

-3x - 5 = 16 (add 5 to 16)

-3x = 21 (divide by -3)

x = -7

Rina8888 [55]3 years ago
3 0

Answer:

-7

Step-by-step explanation:

-3x-5=16

add 5 to both sides

-3x=21

divide both sides by -3

x=-7

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Explain why the following equation is correct.
VMariaS [17]

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The answer is "Option a".

Step-by-step explannation:

\to \bold{ \lim_{n \to \5}  \frac{(x^2+x-30)}{(x-5)} =  \lim_{n \to \5} (x+6) }\\\\

\to \lim_{n \to \5}  \frac{(x^2+(6-5)x-30)}{(x-5)} =  \lim_{n \to \5} (x+6) \\\\\to  \lim_{n \to \5}  \frac{(x^2+6x-5x-30)}{(x-5)} =  \lim_{n \to \5} (x+6) \\\\\to  \lim_{n \to \5}  \frac{x(x+6)-5(x+6)}{(x-5)} =  \lim_{n \to \5} (x+6) \\\\\to  \lim_{n \to \5}  \frac{(x+6) (x-5)}{(x-5)} =  \lim_{n \to \5} (x+6) \\\\\to  \lim_{n \to \5}  (x+6)  =  \lim_{n \to \5} (x+6) \\\\\to 5+6 =5+6\\\\\to 11 =11

that's why the choice a is correct.

5 0
3 years ago
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