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2 years ago

3n+7−2 i need help on this i just don't get it and this is combining like terms

Mathematics

2 answers:

Alona [7]2 years ago

7 0

Answer:

3n + 5

Step-by-step explanation:

3n + 7 - 2

3n is a variable.

7 and 2 are numbers.

Variables can be added with variables.

If variables are added with numbers, it remains constant ( and vice - versa ),

That is.

3n + 7 = 3n + 7

When the value of n is given, then the result of " 3n + 7 " will be a number.

In this question, the value of n is not given.

Numbers can be added or subtracted with numbers. The result will be a number.

7 - 2 = 5

So,

the answer is 3n + 5

inessss [21]2 years ago

6 0

Answer:

3n+5

Step-by-step explanation:

Like terms are the terms that can be added together, in this example, 7 and -2. There aren't any other like terms so if you add them together, the answer would be 3n+5.

Please mark me as Brainliest if possible :)

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Can somebody pls help I’ll mark brainliest

Mnenie [13.5K]

Answer:
64

Explanation:
The square of any number can be obtained by multiplied the number by itself.
In other words:
square of x = x² = x * x

For the given, we want to get the square of 8. This means that we will multiply 8 by itself.
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Hope this helps :)

8 0

3 years ago

Read 2 more answers

If $-2 < x \le 3,$ then find all possible values of $5x + 1.$ Give your answer in interval notation.

kotegsom [21]

Answer: $(-9, 16]$

This is the interval from -9 to 16. Exclude -9 but include 16.

=====================================================

Work Shown:

The idea is to multiply all sides by 5, then add 1 to all sides

$-2 < x \le 3$

$5(-2) < 5x \le 5(3)$

$-10 < 5x \le 15$

$-10+1 < 5x+1 \le 15+1$

$-9 < 5x+1 \le 16$

This converts to the interval notation $(-9, 16]$

note: a curved parenthesis means "do not include this value in the solution set"; while a square bracket has us include the value. So we exclude -9 and include 16.

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