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
Rudiy27
3 years ago
9

21 = 4x - 9 - x what is x?

Mathematics
2 answers:
alexgriva [62]3 years ago
6 0

Answer:

x = 10

Step-by-step explanation:

Given

21 = 4x - 9 - x, that is

21 = 3x - 9 ( add 9 to both sides )

30 = 3x ( divide both sides by 3 )

10 = x

IrinaVladis [17]3 years ago
4 0

Answer:

x = 10

Step-by-step explanation:

21 = 4x - 9 - x

21 = 3x - 9

30 = 3x

10 = x

You might be interested in
Directions: Find the value of x.​
Umnica [9.8K]
I think it would be 12.207… use the Pythagorean theorem (a^2+b^2=c^2) so 10^2+7^2
100+49=149
Then take square root of 149 to undo the the squaring of c and it should be around 12.207 :)
4 0
2 years ago
Read 2 more answers
Is -7-5+3=1 true or false
grigory [225]
-7-5+3=1
-12+3=1
-9≠1. As a result, this is False. Hope it help!
7 0
3 years ago
Please help
JulsSmile [24]

Answer:

correct

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Curtis bought 4 DVDs that each cost the same amount. He had a $10-off coupon and spent $46 in all. What was the cost of each DVD
statuscvo [17]
The answer is 14 dollars because 56 divided by 4 gives 14
8 0
4 years ago
Read 2 more answers
Angela earns $11.50 per hour. If she works more than 40 hours a week she earns double time. This week she worked a total of 48 h
WARRIOR [948]

Answer:

11.50 x 40 regular hours is $460

double time is 11.50 x 2 = $23 an hour

She makes $23 an hour for 8 hours = $184

$460 + $184 = $644 paycheck

5 0
3 years ago
Other questions:
  • Identify the 12th term of the arithmetic sequence in which a7 = 40 and a18 = 106.
    12·1 answer
  • The table shows a f(x).
    8·1 answer
  • Find the integer a such that<br> a.a ≡ 43 (mod 23) and −22 ≤ a ≤ 0.
    7·1 answer
  • Find the lowest common multiple of 28 and 210
    6·1 answer
  • Help plz!!!!!!!!!!!!!!!!!!!!
    13·2 answers
  • Solve for the value of z.<br> (5z-4) 39
    11·1 answer
  • 2300milliters to liters
    13·1 answer
  • can someone help me? (m is a variable if you didnt know, thats what im trying to figure out)-1.5m = -2.55
    12·1 answer
  • William says that 15 years from now, his age will be 3 times his age 5 years ago. if x represents William's present age, what eq
    5·1 answer
  • Sin²A-cos²A=2sin²A-1​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!