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
fiasKO [112]
3 years ago
15

Whats the answer to 3x + 4 = 7x + 8

Mathematics
2 answers:
Yakvenalex [24]3 years ago
7 0

Answer:

-1

Step-by-step explanation:

Add '-7x' to each side of the equation.

4 + 3x + -7x = 8 + 7x + -7x

Combine like terms: 3x + -7x = -4x

4 + -4x = 8 + 7x + -7x

Combine like terms: 7x + -7x = 0

4 + -4x = 8 + 0

4 + -4x = 8

Add '-4' to each side of the equation.

4 + -4 + -4x = 8 + -4

Combine like terms: 4 + -4 = 0

0 + -4x = 8 + -4

-4x = 8 + -4

Combine like terms: 8 + -4 = 4

-4x = 4

Divide each side by '-4'.

x = -1

Simplifying

x = -1

Nostrana [21]3 years ago
4 0

Answer:

0

Step-by-step explanation:

3x + 4 =7x + 8

group like terms:

3x - 7x = 8 - 4

step 2:

-4x = 4

step 3:

-4x/-4 = 4/-4

therefore -4 will cancel -4 to remain the x :

x = 4/-4

which is equal as 0:

x =0

You might be interested in
The chart below shows the number of tickets to the annual teachers VS.
-BARSIC- [3]
The answer to this question is A. 12
6 0
3 years ago
1/x+3=x+10/x-2 From least to greatest, the solutions are x= and x=<br><br>PLEASE HELP!​
Arturiano [62]

Answer:

x = -8 and x = -4.

Step-by-step explanation:

1/(x + 3) = (x + 10)/(x - 2)

1 * (x - 2) = (x + 10) * (x + 3)

x - 2 = x^2 + 3x + 10x + 30

0 = x^2 + 13x + 30 - x + 2

0 =  x^2 + 12x + 32

0 = (x + 8) * (x + 4)

1. x = -8

2. x = -4

The correct result would be x = -8 and x = -4.

hope this helped

6 0
4 years ago
PLEASE HELP WILL GIVE BRAINLIEST ANSWER IF CORRECT
Fofino [41]
Unit rate = 36

---------------------------------
8 0
3 years ago
The contingency table below gives the counts of students by activities and gender. Band Sports Debate Total Male 105 320 7 432 F
Ber [7]

Answer:

599/711

Step-by-step explanation:

           Band Sports Debate Total

Male     105 320  7         432

Female 105 160         14         279

Total 210 480          21          711


P(female or plays sports)

We want the probability that they are female or play sports, but we cannot double count the female sports players, so we subtract them

 P(female) + P (sports) - (female and sports)

female/total + sports/total - female sports/ total

279/711 + 480/711 - 160/711

599/711

6 0
3 years ago
If the mean of the data set is 84 points, find Haruka's final exam score in chemistry,
Pepsi [2]

The answer is 45 because if you divide 84 and 2 you get 42 and then add 3

8 0
3 years ago
Read 2 more answers
Other questions:
  • NEED HELP... must hand in by 2day​
    12·1 answer
  • (-4,-3) and (4,3) distance formula
    8·2 answers
  • What is the probability that the second apple is red?
    13·1 answer
  • How many non-similar triangles have angles whose degree measures are distinct positive integers in an arithmetic progression?
    13·1 answer
  • A shipping crate is packed with unit cubes. The length of the crate is 4
    7·2 answers
  • Enter the fraction using tenths and the decimal by the model.
    7·1 answer
  • Solve the system of equations. (HINT: use the elimination method)<br> 7x+4y=2<br> 9x-4y=30
    10·1 answer
  • what is the probability of drawing two blue cards if the first one isn’t placed back in the bag before the second draw
    13·1 answer
  • Go follow its datgurlmaribel
    11·1 answer
  • Emiri buys 4.25 pounds of butter at the local
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!