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
alina1380 [7]
2 years ago
11

How do you calculate 3x-9y?

Mathematics
1 answer:
Illusion [34]2 years ago
7 0

Answer: 3(x-3y)

Step-by-step explanation: first you have to take the 3x and split it up so it can make 3(x-3y) then you have to rewrite it to -9 as 3x3 and then factor out common term 3 which would be your final answer 3(x-3y)

You might be interested in
six times jasons collection of books and one-third of nathans collection add up to 134 books one-third of jasons collection and
atroni [7]
6j + 1/3n = 134...multiply by 3....18j + n = 402
1/3j + n = 31....multiply by 3....j + 3n = 93

the multiplying by 3 is optional...I just did it because it is easier to work with equations when there are no fractions.

18j + n = 402....multiply by -3
j + 3n = 93
----------------
-54j - 3n = - 1206 (result of multiplying by -3)
j + 3n = 93
----------------add
-53j = - 1113
j = -1113/-53
j = 21

j + 3n = 93
21 + 3n = 93
3n = 93 - 21
3n = 72
n = 72/3
n = 24

so Jasons collection (j) consists of 21 books and Nathans collection (n) consists of 24 books

6 0
3 years ago
9c + 6 = 24 what does the variable c equal
NARA [144]

Answer:

c = 2

Step-by-step explanation:

Isolate the variable, c. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& roots)

Multiplications

Divisions

Additions

Subtractions

~

First, subtract 6 from both sides of the equation:

9c + 6 (-6) = 24 (-6)

9c = 24 - 6

9c = 18

Next, divide 9 from both sides of the equation:

(9c)/9 = (18)/9

c = 18/9

c = 2

c = 2 is your answer.

~

7 0
2 years ago
Read 2 more answers
Evaluate f(0)<br> f(x) = - 4x + 9
german
F(0)= -4(0)+9
F(0)= 0+9
F(0)=9
4 0
3 years ago
Simplified form of 4x - (2 – 3x) + 5?
prisoha [69]
7x + 3 is the final answer
8 0
3 years ago
Read 2 more answers
Please help ! i'll give brainliest to the first person who gets it right ! :,&gt;
telo118 [61]

Answer:

±16

Step-by-step explanation:

the square root of 256 is positive or negative 16! (if it only lets you put one answer, put positive 16).

4 0
2 years ago
Read 2 more answers
Other questions:
  • Ok so I need help on this ,asap plz :)
    7·1 answer
  • Helppp me plzzz on 3 through 10!!!!
    10·1 answer
  • Use the number line to name the fraction or decimal. (H)
    11·1 answer
  • Why is (3,-5) not a solution to -x+4y=-15
    6·1 answer
  • Work the total surface area of the cube​
    5·1 answer
  • ,??!?!?!??????!??.,??
    6·2 answers
  • Two numbers have a difference of 17 and a sum of 23 which system of equations can be used to determine x and y the two numbers?
    10·1 answer
  • -28 + 2x = -18<br> x=? Solve for x
    10·2 answers
  • Calvin works at smokin sally’s barbecue restaurant and keeps track of the numbers of customers who visit the restaurant over a f
    6·1 answer
  • Can anyone solve this correctly?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!