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3 years ago

What is the most efficient first step to isolate the variable term on one side of this equation?

Mathematics

2 answers:

Elanso [62]3 years ago

8 0

D is the correct answer

alina1380 [7]3 years ago

5 0

Answer:
D. add 4x to both sides

Explanation:
-9x = -4x + 5
+ 4x + 4x
-5x = 5

-4x and -4x are opposite terms, so they cancel each other out.
Once you add 4x to both sides, the variable term (-5x) is isolated on one side of the equation.

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3 years ago

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3 years ago

If (-3)^-5 =1/x, what is the value of x?

iragen [17]

$\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
a^{-{ n}} \implies \cfrac{1}{a^{ n}}
\qquad \qquad
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\qquad \qquad 
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-------------------------------\\\\
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7 0

3 years ago

Can u guys help me on this?

Nadusha1986 [10]

Answer:

r = 6 m

Step-by-step explanation:

The circumference of a circle is given by

C = 2 * pi *r

Substitute in what we know

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7 0

3 years ago

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GuDViN [60]

Answer:

Step-by-step explanation:

each notebook is $1.05 and the is $7.50

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3 years ago