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
Alinara [238K]
3 years ago
15

Solve for x 9x + 3 = 21

Mathematics
2 answers:
VladimirAG [237]3 years ago
8 0

Hi,

9x = 21 - 3

9x = 18

x = 18/9 = 2

Ratling [72]3 years ago
3 0
<h2>Answer:</h2>

This is a two-step equation:

9x + 3 = 21\\\\9x = 18\\\\x = 2

You might be interested in
Mark is 7 years older than his brother, who is y years old. Which expression correctly represents Mark's age?
Alex787 [66]

7 + Y = X (x= His unknown age)



3 0
2 years ago
What is the y-intercept of 2g(x)+3x=6?
umka21 [38]

The y-intercept is basically the value of the output of the function, g(x), when x=0.

Let's replace g(x) with the variable y to make this look a bit simpler.

2y + 3x = 6

Now, we enter the value of x=0 to get the y-intercept.

2y + 0 = 6

2y = 6

Divide both sides by 2

y = 3

The value of y is 3. Now enter the values of x=0 and y=3 into point-form (x,y) to get (0,3). You should know which answer choice to choose now.

Have an awesome day!

8 0
3 years ago
If total length of boundary of a circle is 220m. find its diameter​
Aleonysh [2.5K]

Answer:

3850m^2

Step-by-step explanation:

hope this helps

4 0
2 years ago
Which equation can be used to represent "six added to twice the sum of a number and four is equal to half the difference of thre
forsale [732]
2(n+4) + 6 = (1/2)(3-n)

Then 2n + 8 + 6 = 3/2 - n/2
and    2n + 14 = 3/2 - n/2

(5/2)n = 3/2 - 28/2 = -25/2
          -25/2
n = -------------- = -5 (answer)
            5/2
6 0
2 years ago
after an oil pipeline burst one morning gas prices went up by $2.20 per gallon at the afternoon you bought 10 gallons of gas for
mr Goodwill [35]
53.90/10=5.39
5.39-2.20=3.19
3.19 dollars per gallon
6 0
3 years ago
Read 2 more answers
Other questions:
  • If you multiply a number by 3 and divide by 4 the result is 24. what is the number?
    15·2 answers
  • Carl's age, 32, is 25 less than one-third his weight. How much does<br>Carl weigh?​
    14·2 answers
  • Write all the numbers that round to 50 80 and 240
    11·2 answers
  • Evaluate y5 for y = 1.<br> 1<br> 5<br> 15
    13·1 answer
  • What integer is equivalent to93/2
    13·2 answers
  • The expanded fom of (a-b)²​
    10·2 answers
  • $49.95 pair of shoes; 5% tax
    6·2 answers
  • The ticket price for an ice hockey match used to cost ?19.60. The price has now increased by 12.5%. How much will 2 tickets cost
    9·1 answer
  • A 300-lb gorilla climbs a tree to a height of 30 ft. Find the work done if the gorilla reaches that height in the following time
    11·1 answer
  • Can y’all plz help me
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!