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Ira Lisetskai [31]
3 years ago
11

Rewrite the following phrase as a mathematical expression: twice a number increased by eighteen. 2n + 18 18n + 2 2 + 18 2(18n)

Mathematics
2 answers:
VladimirAG [237]3 years ago
3 0
I am not sure about the last two phrases, but here's what I think.
2(n+18)
18(2+n)
Firdavs [7]3 years ago
3 0
The last one would be multiple
2•(18•n)
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Good morning ☕️

Answer:

(\frac{-2}{3} , -2)

Step-by-step explanation:

3x+y=-4   (1)

3x-4y=6  (2)

<em><u>solving by elimination:</u></em>

(1) - (2) ⇒

3x + y  = -4

3x - 4y = 6

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0 + 5y  = -10

5y = -10 ⇔ y = -2

(2) ⇒ 3x-4y=6  ⇒ 3x-4(-2)=6  ⇒ 3x = 6 - 8 = -2 ⇒ x = -2/3

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3 0
3 years ago
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2(x−3) = 2x + 15 how many solutions
sammy [17]

Answer:

0

Step-by-step explanation:

2x-6=2x+15

2x-2x=15+6

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x=0

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Papessa [141]
16/100=0.16
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Answer:

60

Step-by-step explanation:

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VARVARA [1.3K]

Answer:

720 degrees

Step-by-step explanation:

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