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Paul [167]
3 years ago
15

Pls help I don’t understand

Mathematics
2 answers:
sveticcg [70]3 years ago
4 0
Distributive property!

3 (2 + x) - 2 (5 -2x)
turns into

6 + 3x -10 + 4x

now combine terms

final answer: -4 + 7x
Oksana_A [137]3 years ago
3 0

3(2+n)-2(5-2n)

Mutiply the first bracket by 3

(3)(2)= 6

(3)(n)= 3n

Mutiply the second bracket by -2

(-2)(5)= -10

(-2)(-2n)= 4n

6+3n-10+4n

6-10+3n+4n ( combine like terms )

-4+7n or 7n-4

Answers: -4+7n or 7n-4

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Read 2 more answers
If the domain of the function F = {(x, y) | 2x + y = 7} is {1, 2, 3}, what is the range?
Molodets [167]

Answer:

The range of the function is {1,3,5}.

Step-by-step explanation:

The function is defined as

F=\{(x,y)|2x+y=7\}

The set of all possible inputs is called domain and the set of output is called range.

In other words the possible values of x are elements of domain and the values of y are the elements of range.

Since the domain is {1,2,3} and the function is

2x+y=7

Put x=1

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Put x=2

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Since the possible values of y are 5,3 and 1, therefore the range of the function is {1,3,5}

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