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liraira [26]
3 years ago
10

B R O H E L P M E T H A N K Y O U : < )

Mathematics
1 answer:
Ksivusya [100]3 years ago
4 0
Rules: (-) plus (-) equals positive.
Anything negative in absolute value will turn positive. Example, | -2 | —> 2

|-4b-8|+|-1 -b^2| +2b^3; b=-2

First step is substituting all the “b” to -2.
|-4(-2) -8| + |-1 -(-2)^2| +2(-2)^3
Then start solving.
|8-8| + |-1 -(4)| +2(-8)
|0| + |-5| -16
0 +5 -16= -11
Answer: -11
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Given:

In a number, adding 1\dfrac{3}{4}, then multiplying the result by 2\dfrac{2}{11} we get 8.

To find:

The unknown number.

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Let the unknown number be x.

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(x+1\dfrac{3}{4})\times 2\dfrac{2}{11}=8

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x=\dfrac{11}{3}-\dfrac{7}{4}

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x=\dfrac{23}{12}

x=1\dfrac{11}{12}

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