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tankabanditka [31]
3 years ago
6

Enter the value of n so that the expression (y + 2) + (3y - 5) is equivalent to (ny- 3)

Mathematics
2 answers:
matrenka [14]3 years ago
5 0

Answer: n = 4

Step-by-step explanation: you combine the like variables which turns it into

(4y - 3)

(4y - 3) is <em>another</em> way of saying ((4 x y) - 3)

So the 4 is turned into n making it (ny - 3)

r-ruslan [8.4K]3 years ago
5 0

Step-by-step explanation:

(y+2) + (3y-5) = (ny-3)

Step 1: Remove the brackets as the terms in brackets are separated by an addition sign.

y + 2 + 3y - 5 = ny - 3

Step 2: Join the like-terms.

4y - 3 = ny - 3

From here, you can either do logical reasoning that n = 4 because lefthand side should be equal to righthand side or you continue by making n subject of the formula which obviously gives you 4 :)

You might be interested in
the sum of three consecutive integers is 78. What is the value of the smallest of the three integers?
CaHeK987 [17]

Answer:

Step-by-step explanation:

Consecutive integers just means like one after another.

This means that:

First number = x

Second number = x + 1

Third number = x + 2

They've told us that the sum of 3 consecutive integers is 78.

First number + second number + third number = 78

Sub the equations we wrote into the formula above and we get:

x + x + 1 + x + 2 = 78

Gather the like terms.

3x + 3 = 78

Subtract 3 from both sides.

3x = 78-3 = 75

Divide both sides by 3 to solve for x.

x = 75/3 = 25

If you look at the very beginning we said that the first number = x.

Therefore it is 25.

Second number = x + 1 = 26

Third number = x + 2 = 27

8 0
3 years ago
Which situation can be modeled by the equation y=3x+25
Gnesinka [82]

For this case we have the following situation:

The monthly cost of a gym in the city is $ 3. The initial registration is $ 25. Write a mathematical expression that models the problem.

So we have to define variables:

x: number of months

y: total cost

The mathematical expression that models the problem is:

y = 3x + 25

7 0
3 years ago
Write an equivalent expression for 27x + 18.
Ugo [173]

Answer:

<u><em>9 (3x+2)</em></u>

Step-by-step explanation:

<u>27x + 18 = 9 (3x+2)</u>

<em>By simplifying the Given expression you get 9 (3x+2) </em>

<em>and no matter how many times you simplify that expression you always get the expression you started with so in other word their equavalent to each other</em>

<em />

<u><em>Hope this helps</em></u>

3 0
3 years ago
The sum of two consecutive integers is 65. what are the two integers? show steps please.
Gnoma [55]

Hi student, let me help you out! :)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We are asked to find the two integers, given that they are consecutive, and their sum is 65.

\triangle~\fbox{\bf{KEY:}}

  • Consecutive integers are right next to each other, like 12 and 13. or 65 and 66.

Let the first integer be x, and let the second integer be x+1.

Their sum is 65. Let's set up our equation:

\longmapsto\sf{x+x+1=65}

Combine like terms:

\longmapsto\sf{2x+1=65}

Subtract 1 from both sides of the equal sign:

\longmapsto\sf{2x=64}

Divide both sides by 2:

\longmapsto\sf{x=32}

To find the second integer, subtract the first integer from the sum of the two integers:

\longmapsto\pmb{65-32}

\longmapsto\pmb{33}

The integers are: 33 and 32.

Hope it helps you out! :D

Ask in comments if any queries arise.

#StudyWithBrainly

~Just a smiley person helping fellow students :)

7 0
2 years ago
More expression help!​
irga5000 [103]
Y=5s+8a+200 is the right answer pretty sure
6 0
3 years ago
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