3 years ago

What number is the opposite of the opposite of -99?

Mathematics

2 answers:

Degger [83]3 years ago

7 0

Answer: the opposite of -99 is 99 if your doing the absolute value

Step-by-step explanation:

astraxan [27]3 years ago

3 0

Answer:

Step-by-step explanation:

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From what i see it could be
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2/3 b + 5 =20 - b solve for b

Wittaler [7]

Answer:

$b = 9$

Step-by-step explanation:

$\frac{2}{3} b + 5 = 20 - b$

In order to solve for b, we must isolate the variable. We can start by subtracting 5 from both sides.

$\frac{2}{3} b + 5 - 5 = 20 - b - 5$

Simplify.

$\frac{2}{3} b = 15 - b$

Add b to both sides.

$\frac{2}{3} b + b = 15 - b + b$

Simplify.

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Multiply everything by 3 to remove the fractions.

$3(\frac{2}{3}b+b) = 3(15)$

Simplify.

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Divide 5 from both sides.

5b ÷ 5 = 45 ÷ 5

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2 years ago

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Solve for B. R = x(A + B) A) B = (R - A)/x B) B = (A - Rx)/x C) B = (R - Ax)/x

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R = x(A+B)

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