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
aliina [53]
3 years ago
13

Please simplify! x+9=21+3x-4+10

Mathematics
2 answers:
Zina [86]3 years ago
8 0

Answer:

x= -9

Step-by-step explanation:

- Put all the same signs together

x-3x = 21-4+10-9

*Quick tip:

  -when you cross a sign with a number or without a number over the equal  

   sign you have to change the sign (positive to negative and negative to    

   positive.

  -x and 1x is the same thing

- Calculate small sections by small sections

-2x = 17 + 1

-2x= 18

-2/-2x = 18/-2

x= -9

skad [1K]3 years ago
6 0

Answer:

-9

Step-by-step explanation:

Step 1 : Put like terms together

x + 9 = 21 + 3x - 4 + 10

Subtract 3x on both sides

-2x + 9 = 21 - 4 + 10

Subtract 9 on both sides

-2x = 21 - 4 + 10 - 9

Simplify

-2x = 18

Step 2 : Divide

\frac{-2x}{-2} = \frac{18}{-2}

x = -9

You might be interested in
Please give me the answer i cant get it
dexar [7]

Answer:

i believe its c

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Andrew lives at an altitude of 135 feet, and his friend Lisa lives at an altitude of -10 feet. blank residence is higher than bl
tatiyna

Answer:

Andrews residence is higher than Lisa's residence

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
If there are 5 routes to travel between A and B, how many options are there for a person to travel form A to B and retrun back?
kupik [55]

Answer:

25

Step-by-step explanation:

5 0
2 years ago
Your cousin borrowed $6000, some on a home-equity loan at an interest rate of 9.5% and the rest on a consumer loan at an interes
Novosadov [1.4K]

Answer:

I=PRT 9.5% in decimal form is .095=11 times rate times tax but we don't know what the tax is.

6 0
3 years ago
9. Teresa was taking her two children to the zoo. She purchased 1 adult ticket for herself and 2 children's
Irina18 [472]

Answer:

plz mark as brainliest

Step-by-step explanation:

$7.9

6 0
2 years ago
Other questions:
  • A recent newspaper article reported on​ Americans' eating habits. The article reported that only about one third of American adu
    14·1 answer
  • i have only a few more questions! I took screen shots of them, so flip threw the picture. all of them are different questions!
    12·1 answer
  • 9 is 3% of what number
    7·2 answers
  • Need some help with the question look at the attachment file to answer
    5·2 answers
  • 5/7(d+20)= -10<br> What is d?
    12·2 answers
  • PLEASE HELP QUICK!!!! WILL GIVE BRAINIEST!!!!!
    9·1 answer
  • Is this problem a combination or permutation?
    5·2 answers
  • Solve the Equation.
    15·1 answer
  • Define the term of mathematics ?​
    13·1 answer
  • The area covered by a marsh, A, starts at 11500 acres and drops by a 1/4 each year for n years. Write a formula for A(n).
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!