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Svetach [21]
3 years ago
13

Combine the like terms to create an equivalent expression. 5n-2n

Mathematics
2 answers:
Setler79 [48]3 years ago
5 0

Answer:

3n

Step-by-step explanation:

When subtracting like terms (numbers, or variable expressions that have the same variable, like these), you add the coefficients (the numbers attached to the variable) to simplify the expression.

5n - 2n

 

   You have 5 "n"s and you subtract 2 "n"s, leaving you with 3 "n"s

nevsk [136]3 years ago
4 0

Answer:

3n

Step-by-step explanation:

5n - 2n = (5-2)n

              =3n

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X^2 + 18x + c = 25 +c
svet-max [94.6K]
Rearrange to: x^2 + 18x - 25 = 0
Then factorise (I like to do it by completing the square):
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(x + 9)^2 = 106
x + 9 = sqrt(106)
The sol'ns are:
x = -9 + and - sqrt(106)
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Dafna11 [192]
In order to solve first convert both values into improper fractions:
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vampirchik [111]

Answer:

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x = 2/3

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