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
marta [7]
3 years ago
11

What is the solution to 4x-8=12 please explain.

Mathematics
2 answers:
Vladimir [108]3 years ago
7 0

Answer:

One solution, x=5.

Step-by-step explanation:

4x-8=12

To find the solution we have to find the value of x.

to find the value of x, we have to add 8 to BOTH sides.

4x-8=12   (Why add 8? because we have to do the opposite of the sign!)

   +8  +8

4x=20

Now to find X we have to ISOLATE IT.

So we take out 4, How? We do the opposite to both sides.

4/4 Cancels out

20/4 = 5

So now we know X=5

Insert in the main problem to check.

4(5)-8=12

20-8=12

12=12

dedylja [7]3 years ago
3 0

Answer:

x=5

Step-by-step explanation:

4x−8=12

Step 1: Add 8 to both sides.

4x−8+8=12+8

4x=20

Step 2: Divide both sides by 4.

4x

4

=

20

4

x=5

You might be interested in
How do I solve for x and y?
Lesechka [4]
Cancel out the terms from one side first then do it for the other one. 4 example make x and individual by multiply the other side by 9 the evaluate. do the same for y 
7 0
3 years ago
What is f(x)=2x-1 if x=0
mrs_skeptik [129]

Answer:

f=\frac{2x-1}{x}

Step-by-step explanation:

3 0
2 years ago
3 times a number is 54 less than the square of that number. Find the negative solution.
son4ous [18]

Answer:

-6

Step-by-step explanation:

3n = n² - 54

n² - 3n - 54 = 0

n² - 9n + 6n - 54 = 0

n(n - 9) + 6(n - 9) = 0

(n - 9)(n + 6) = 0

n = 9 , -6

5 0
2 years ago
A Web music store offers two versions of a popular song. The size of the standard version is 2.1 megabytes (MB). The size of the
liq [111]
If the number of downloads of the standard version is x, and the high quality is x, 2.1*x+4.1*y=2761 (not 1010 due to that this is multiplied by 2.1 and 4.1, therefore representing the total amount of megabytes) In addition, there are 1010 total downloads, and it's either 2.1 MB or 4.1 MB, so x+y=1010.

We have 
2.1x+4.1y=2761
x+y=1010

Multiplying the second equation by -2.1 and adding it to the first equation, we get 2y=2761-1010*2.1=640 and by dividing both sides by 2 we get y=320 downloads of the high quality version


5 0
3 years ago
A circle with area 16pi has a sector with a central angle of 8/5pi radians. What is the area of the sector?
lianna [129]

Answer:

The area of the sector is 12.8\pi\ units^2

Step-by-step explanation:

we know that

The area of a complete circle (16π units^2) subtends a central angle of 2π radians

so

using proportion

Find out the area of a sector , if the central angle is equal to 8π/5 radians

\frac{16\pi}{2\pi}=\frac{x}{(8\pi/5)}\\\\x=8(8\pi/5)\\\\x= 12.8\pi\ units^2

4 0
3 years ago
Read 2 more answers
Other questions:
  • Find f(0) and f(2) for the given exponential function. f(x) = (1/2)^-x
    11·1 answer
  • What is the value of x?<br> Please show how you got that answer so I can learn, thanks.
    7·1 answer
  • If 15% of N is 45% of 2003, what is the value of N?
    8·1 answer
  • Can i get help determining the value of x​
    9·1 answer
  • Lauren is the touring students at the library on Saturday if she is a library for a total of 6 hours and she helps each student
    10·1 answer
  • At a benefit concert, nine bands have volunteered to perform but there is only enough time for seven of the bands to play. How m
    9·1 answer
  • The acceleration, a, of an object produced when a force is applied is given by the following formula, where F represents the for
    10·1 answer
  • 4. What is the experimental probability of spinning orange?
    13·2 answers
  • Give the solve problem of simple interest?​
    8·1 answer
  • Use the table to write the equation of each quadratic function.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!