1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kupik [55]
3 years ago
11

I have a few problems on combining like terms please help:

Mathematics
2 answers:
solong [7]3 years ago
4 0
Combing like terms is actually pretty simple. As long as you can do basic addition, multiplication, division, and subtraction, you should be fine. Like terms are two or more terms that have the same variable(s) -- sometimes like terms can be two or more regular numbers without variables as well. When combing like terms without a variable, just perform the operation as normal (i.e. 2 + 5 = 7). When combing like terms with a variable, perform the operation on the coefficients (i.e. 10x + 5x = (10+5)x = 15x). 

1) 12r - 8 - 12
Here the like terms are -8 and 12.
-8 - 12 = -20
<span>12r - 20
</span>
2) n - 10 + 9n - 3
Here the like terms are n and 9n and -10 and -3.
To make it easier you can reorder the expression to be n + 9n - 10 - 3.
n + 9n = (1 + 9)n = 10n
-10 - 3 = -13
<span>10n - 13
</span>
3) -4x - 10x
Here the like terms are the only two terms in the expression, -4x and -10x.
(-4 - 10)x = -14x
<span>-14x
</span>
4) -r - 10r
Here the like terms are the only two terms in the expression, -r and -10r.
(-1 - 10)r = -11
-11r
Alla [95]3 years ago
4 0
12r-20\\&#10;10n-13\\&#10;-14x\\&#10;-11r
You might be interested in
The perimeter of the regular polygon shown is 14 ft.
Oliga [24]
The answer is C. 2.8!!!!!!!!
3 0
3 years ago
A container has
Aneli [31]

Answer:

there may be 16 but I am not sure

5 0
3 years ago
To train for a race, Scott wants to run 20 miles this week. He runs 14 of the miles on Monday.
nalin [4]

Answer:

Scott will need 3 more to meet his goal

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
HELP FAST 100 POINTS 100 POINTS What is the value of the expression when a = 5, b = 4 , and c = 6?⁢ 4a2b−c 2 5 9 10
ohaa [14]

For this case we must find the value of the following expression:

4a ^ 2b-c

When:

a = 5\\b = 4\\c = 6

Substituting the given values we have:

4 (5) ^ 2 * 4-6 =\\4 (25) (4) -6=\\400-6 =\\394

Finally, the value of the expression is 394.

Answer:

The value of the expression is 394.

3 0
3 years ago
Read 2 more answers
Please help me with this thanks so much to whoever is helping me
netineya [11]

Answer:

X = 80

Step-by-step explanation:

A flat line is equal to 180 degrees, meaning that if you use linear, you can find out that if you subtract 100 from it, it becomes 80, which resembles the X.

8 0
2 years ago
Other questions:
  • What is this prism called? if you want to explain it to me also thatd be great (volume and surface area) but I just need to know
    8·1 answer
  • George has $23 to spend on art supplies. He wants to buy markers, paper, and glue. If the total cost of the markers and paper is
    6·1 answer
  • What is the equation of a line that is parallel to the line y=10 and passes through the point (-5,8)?
    5·1 answer
  • Need the Aswer for 622g+8kg im in 3rd grade
    13·2 answers
  • Divide. −4 4/5 ÷ 4 ​ −1 1/5 ​ ​​ −4/5 4/5 ​​ 1 1/5
    9·2 answers
  • How do I simplify −9(3−4w)−8w
    11·2 answers
  • Chang and Carlotta solve this problem in two different ways.
    10·1 answer
  • The LCD for 4/8 and 5/12 is _____.
    10·1 answer
  • Please help.... asap
    14·1 answer
  • Look at the pic and show your work
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!