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
Ratling [72]
3 years ago
11

Evaluate this expression: 3x + 9x -5

Mathematics
1 answer:
Margarita [4]3 years ago
5 0

Answer:

12x - 5

Step-by-step explanation:

3x + 9x - 5 can be easily simplified by combining like terms.

3x and 9x are like terms because they both contain the same variable and the same exponent (understood to be 1).

Therefore, because an addition sign separates the two terms, it is expected of you to add the two together. To do this, just add the terms together as you would any other terms.

3x + 9x = 12x

Because the 5 is the only constant in the equation, it cannot be combined with anything else.

The simplified expression is 12x - 5.

You might be interested in
1. what two things need to be true in order to add/subtract two radicals ?
Novay_Z [31]

Answer: 1. To add or subtract radicals, the indices and what is inside the radical (called the radicand) must be exactly the same. If the indices and radicands are the same, then add or subtract the terms in front of each like radical. If the indices or radicands are not the same, then you can not add or subtract the radicals.2.The index tells you how many of a kind you need to put together to be able to move that number or variable from inside the radical to outside the radical. For example, if the index is 2 (a square root), then you need two of a kind to move from inside the radical to outside the radical.3.When factoring a trinomial in the form x2 + bx + c, consider the following tips. Look at the c term first. o If the c term is a positive number, then the factors of c will both be positive or both be negative. In other words, r and s will have the same sign.

Step-by-step explanation:

6 0
3 years ago
What is the simplest form of the ratio 40:16?
Svetlanka [38]
So the greatest common factor of 40 and 16 is 8

40/8 : 16/8

5:2

The simplest form of the ratio 40:16 is 5:2

Hope this helps!
3 0
3 years ago
Read 2 more answers
Graph y=x^2+y^2-4x+8y+16
S_A_V [24]
Here is the function graphed. This is what you asked for.

5 0
3 years ago
PLEASE HELP I WILL GIVE YOU BRAINLIST I NEED HELP PLEASE
bearhunter [10]

Answer:

One Solution

Step-by-step explanation:

Do distributive property

3k+6+3+7k=2k+4+3k

Combine like terms

10k+9=5k+4

Subtract 5k from 10k

5k+9=4

Subtract 9 from 4

5k=-5

Divide

k=-1

Hope this helped, Have a Wonderful Day!!

3 0
3 years ago
Please help!! Thanks
Troyanec [42]
X=3

X/-3 = -1 ,Leave X by itself so multiply by -3 on both sides.

X = -1*-3

X = 3, negative times negative equals positive.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Given that g(x)=3x²-5x+7 find each of the following
    14·1 answer
  • The Leukemia and Lymphoma Society sponsors a 5k race to raise money. It receives $55 per race entry and $10,000 in donations, bu
    14·1 answer
  • A survey of teenagers found the music preferences listed. If you pick a teenager at random, what is P(rock)?
    13·1 answer
  • It passes through (-1,4) and is perpendicular to the x axis
    10·1 answer
  • 1,828 thousand in standard form
    15·2 answers
  • Could someone help me out with the general process of this/these problems in general? Y'know like using this one as an example,
    15·2 answers
  • I need help on this question if anybody would help me out
    7·2 answers
  • What is tan 30°?
    9·2 answers
  • Jerry has $558 to spend on dining room chairs. if each chair costs $58, does he have enough to purchase nine chairs
    10·1 answer
  • Is it a function of time? <br><br> Yes or No<br> Please explain
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!