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jeka94
2 years ago
6

If three times a certain number is increased by 4 the result is 28

Mathematics
2 answers:
alex41 [277]2 years ago
7 0
The number is 8. You work backwards. 28-4=24. 24/3=8
Anastasy [175]2 years ago
3 0

Answer:

The number is 8

Step-by-step explanation:

Let x be the number

3x+4 = 28

Subtract4 from each side

3x+4-4 = 28-4

3x= 24

Divide by 3

3x/3 =24/3

x = 8

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agasfer [191]

Answer:

x = 2, or x = -1

Step-by-step explanation:

If 2x - 3 is inside the parenthesis (), then the value of x is 2.

If 2x - 3 is inside the absolute value sign, then the value of x will probably be -1.

<u>Solution 1</u>

(10x-15) + 4 = 9

10x -11 = 9

10x = 20    -> x = 2

<u>Solution 2</u> (Not 100% sure)

|10x -15| +4 = 9

10x + 15 +4 = 9

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10x = -10      -> x = -1

Please correct me if I'm wrong.

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3 years ago
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Answer:

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Hitman42 [59]

Answer:

238 D

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drek231 [11]
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