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masya89 [10]
3 years ago
12

Solving one step equation x+8=-15

Mathematics
1 answer:
Olegator [25]3 years ago
4 0

Answer:

x= -23

Step-by-step explanation

Subtract 8 from itself and form -15

x+8= -15

  -8   -8

x= -23

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Solve the quadratic equation by taking square roots.
Stolb23 [73]

Answer:

see explanation

Step-by-step explanation:

1

Given

2x² - 16 = 0 ( add 16 to both sides )

2x² = 16 ( divide both sides by 2 )

x² = 8 ( take the square root of both sides )

x = ± \sqrt{8} = ± 2\sqrt{2}

------------------------------------

2

Given

- 5x² + 9 = 0 ( subtract 9 from both sides )

- 5x² = - 9 ( divide both sides by - 5 )

x² = \frac{9}{5} ( take the square root of both sides )

x = ± \sqrt{\frac{9}{5} } = ± \frac{3}{\sqrt{5} }

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3

Given

6x² - 15 = 27 ( add 15 to both sides )

6x² = 42 ( divide both sides by 6 )

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4 0
3 years ago
Please answer. (No links please)
Romashka-Z-Leto [24]

Answer:

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3 0
2 years ago
Read 2 more answers
Find the value of x
Studentka2010 [4]

Answer:

x = 5

Step-by-step explanation:

(10/3)/5 = (x+1)/9

(10/3)9 = 5(x+1)

90/3 = 5x + 5

30 = 5x + 5

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6 0
3 years ago
Read 2 more answers
B) 144kg in the ratio 1 3.5​
Vlada [557]
So you add 13+5=18

Then you do 144/18=8

8x13=104 8x5=40

104+40=144✅

Answer= 104 : 40
6 0
3 years ago
What's the value of -2/5-(-9/15)?
ollegr [7]

9514 1404 393

Answer:

  B.  -2/5+9/15 = 3/15

Step-by-step explanation:

The only two answer choices that have -2/5 as part of the sum are B and C. Of those, choice C incorrectly represents the subtraction of -9/15.

The only reasonable choice is B.

__

The result can be reduced from 3/15 to 1/5 by removing a factor of 3 from numerator and denominator.

8 0
3 years ago
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