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Zielflug [23.3K]
3 years ago
14

-6x + 3x = -21 linear equations

Mathematics
2 answers:
snow_tiger [21]3 years ago
8 0

well combine like terms

-3x = -21

divide both sides by -3

x = 7

kompoz [17]3 years ago
5 0

Answer:

x = 7

Step-by-step explanation:

-6x + 3x = -21

Combine like terms

-3x = -21

Divide by -3

-3x/-3 = -21/-3

x = 7

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If a patient needs 30 days supply of tablet two tablets four times a day how many tablets with a patient need for discharge
marissa [1.9K]

Answer:

Total number of tablets needs to discharge = 240 tables

Step-by-step explanation:

Given:

Number of days tablet need = 30 days

Number of times per days need = 4 times

Number of tablet per time = 2 tablet

Find:

Total number of tablets needs to discharge = ?

Computation:

⇒ Total number of tablets needs to discharge = Number of days tablet need × Number of times per days need × Number of tablet per time

⇒ Total number of tablets needs to discharge = 30 × 4 × 2

⇒ Total number of tablets needs to discharge = 240 tables

6 0
3 years ago
Reese read twice as many pages Saturday than she read Sunday. If she read a total of 78 pages over the weekend, how many pages d
eimsori [14]

Given:

Reese read twice as many pages Saturday than she read Sunday.

She read a total of 78 pages over the weekend.

To find:

The number of pages she read on Sunday.

Solution:

Let x be the number of pages she read on Sunday.

Reese read twice as many pages Saturday than she read Sunday. So, the number of pager she read on Saturday is 2x.

Total number of page she read over the weekend is:

Total=x+2x

Total=3x

She read a total of 78 pages over the weekend.

3x=78

x=\dfrac{78}{3}

x=26

Therefore, Reese read 26 pages on Sunday.

3 0
3 years ago
(will give brainliest!!)
Alex73 [517]
Hey there!

To figure out what "x" means, you can divide the numbers 126 and 14  . . .

126 divided by 14 = 9

9 x 14 = 126

9 = x

----------------
x = 9
----------------

Hope this helps you.
Have a great day!
4 0
3 years ago
Read 2 more answers
If a cone has a height that equals twice the diameter of its base,what is its volume in terms of the height
Andrew [12]
I am not sure. that is too confusing for my little brain
4 0
3 years ago
Select the correct answer
Tcecarenko [31]

Answer:

C. 150

Step-by-step explanation:

It's right on Plato.

4 0
2 years ago
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