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
san4es73 [151]
2 years ago
12

3x -5 =7 the solution for X is?​

Mathematics
2 answers:
BabaBlast [244]2 years ago
7 0

Answer:

x = 4

Step-by-step explanation:                            

[ changing sides, changes addition to subtraction and subtraction to addition] [ multiplication changes to division and division changes to multiplication]

3x -5 =7  

3x = 7 + 5

3x = 12

x = 12/3

x = 4

s2008m [1.1K]2 years ago
5 0

Answer:

x=4

Step-by-step explanation:

3x-5 = 7

Add 5 to each side

3x-5+5 = 7+5

3x = 12

Divide each side by 3

3x/3 = 12/3

x = 4

You might be interested in
Simplify:<br> (4p3 + 6p2 – 7) – (8p? – 7 – 3p)
Kipish [7]

Answer:

4p3 + 6p2 - 8p - 7

Step-by-step explanation:

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "p2"   was replaced by   "p^2".  1 more similar replacement(s).

STEP

1

:

Equation at the end of step 1

 (((4 • (p3)) +  (2•3p2)) -  7) -  8p

STEP

2

:

Equation at the end of step

2

:

 ((22p3 +  (2•3p2)) -  7) -  8p

STEP

3

:

Checking for a perfect cube

3.1    4p3+6p2-8p-7  is not a perfect cube

Trying to factor by pulling out :

3.2      Factoring:  4p3+6p2-8p-7

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1:  -8p-7

Group 2:  4p3+6p2

Pull out from each group separately :

Group 1:   (8p+7) • (-1)

Group 2:   (2p+3) • (2p2)

3.3    Find roots (zeroes) of :       F(p) = 4p3+6p2-8p-7

Polynomial Roots Calculator is a set of methods aimed at finding values of  p  for which   F(p)=0  

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers  p  which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number  P/Q   then  P  is a factor of the Trailing Constant and  Q  is a factor of the Leading Coefficient

In this case, the Leading Coefficient is  4  and the Trailing Constant is  -7.

The factor(s) are:

of the Leading Coefficient :  1,2 ,4

of the Trailing Constant :  1 ,7

Let us test ....

  P    Q    P/Q    F(P/Q)     Divisor

     -1       1        -1.00        3.00    

     -1       2        -0.50        -2.00    

     -1       4        -0.25        -4.69    

     -7       1        -7.00       -1029.00    

     -7       2        -3.50        -77.00    

     -7       4        -1.75        3.94    

     1       1        1.00        -5.00    

     1       2        0.50        -9.00    

     1       4        0.25        -8.56    

     7       1        7.00        1603.00    

     7       2        3.50        210.00    

     7       4        1.75        18.81    

Final result :

 4p3 + 6p2 - 8p - 7

5 0
2 years ago
Sonia read 2 pages of book per minute. If sonia read all the pages of the book at the same rate, which equation shows the tital
Fudgin [204]
2x=y
two times the number of minutes = the amount of pages 

5 0
3 years ago
To avoid modeling the physical characteristics of wheel encoders such the square wave outputs, it is desirable to generate encod
grandymaker [24]

Answer:

The probability distribution is  Normal continuous

Step-by-step explanation:

The basic idea is that velocity values have different noise level and an important thing regarding continuous probability distributions is that the probability of the random variable is equal to a specific outcome is 0

In other words, is practically impossible that one value of velocity could be the same as others.

5 0
2 years ago
Five grams of sugar are added to a 40-gram serving of a breakfast cereal that is 10% sugar. What is the percent concentration of
tamaranim1 [39]
10g+0.10(40g)=14 grams of sugar.
7 0
3 years ago
01. It took h to complete 1 game of cards. How many games can be completed in h?
kolbaska11 [484]
A) one game shall be completed as it says. although if the game is sped up you may have a chance to have more or if it is slowed down not even one game!
b) i really have no clue to show a model but yes that is what i think i know im dumb and its emo logic but yea...
6 0
3 years ago
Other questions:
  • What is the equation of the line of best fit that Frank drew?<br> 
    6·1 answer
  • What is the answer to this question 4(5x+30)=100?
    13·1 answer
  • Which of these are greater than 1.27 CHOOSE ALL ANSWERS THAT APPLY
    9·2 answers
  • Which of these sentences is always true for a parallelogram?
    14·2 answers
  • The length of time of the school field day was decreased
    14·1 answer
  • Find the volume of a cylinder with a height of 6cm and a radius of 3cm
    10·2 answers
  • A football team played 90 matches. They won 37 matches.
    15·1 answer
  • Which of the following is correct?
    14·1 answer
  • Dan bought x pounds of potatoes for $0.85 per pound and y pounds of grapes for $1.29 per pound. The total cost was less than $5.
    8·1 answer
  • PLEASE PLEASE HELP (DUE ASAP)! I was struggling a lot with this and I was hoping for an accurate answer! Name the correct angle
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!