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
zysi [14]
3 years ago
8

Solving rational equations solve for x: 3/x-4=7/x

Mathematics
2 answers:
KIM [24]3 years ago
8 0

Solving the rational equation \frac{3}{x-4}=\frac{7}{x} the value of x is 7

Step-by-step explanation:

We need to solve rational equation: \frac{3}{x-4}=\frac{7}{x} and find value of x.

Solving:

\frac{3}{x-4}=\frac{7}{x}

Cross multiplying:

3(x)=7(x-4)\\Simplifying:\\3x=7x-28\\3x-7x=-28\\-4x=-28\\x=-28/-4\\x=7

So, value of x = 7.

Solving the rational equation \frac{3}{x-4}=\frac{7}{x} the value of x is 7

Keywords: Solving the rational equation

Learn more about Solving the rational equation at:

  • brainly.com/question/13168205
  • brainly.com/question/1757979
  • brainly.com/question/2456302

#learnwithBrainly

Olenka [21]3 years ago
4 0

Answer:

-1

Step-by-step explanation:

3/x - 4 = 7/x

3/x - 7/x = 4

-4/x = 4

x = -1

You might be interested in
J is the midpoint of HK¯¯¯¯¯¯¯ . What are HJ, JK, and HK?
lana [24]
Since J is the midpoint of HK, that means HK is split into two sections HJ and JK that are the same length.

1) You are told that the m<span>easure of segment HJ = 9x-2 and that of segment JK = 4x+13. Since you also know they are equal lengths, you can set these equations equal to each other to find the value of x!
HJ = JK
</span>9x-2 = 4x+13
5x = 15
x = 3

2) Now you know x = 3. Plug that into your given equations for HJ and JK to find the length of each segment (or a shortcut would be to find one of them, and then you also know the other is the same length. I'm doing both, just to make sure I don't make a silly mistake!):
HJ = <span>9x-2 
</span>HJ = 9(3) - 2
HJ = 27 - 2
HJ = 25

JK = 4x + 13
JK = 4(3) + 13
JK = 12 + 13
JK = 25

3) Finally, the length of HK is just the length of HJ + JK, or HK = 25 + 25 = 50.

-----

Answer: HJ = 25, JK = 25, HK = 50
4 0
3 years ago
Christina biked 36 miles 6 in hours if she biked at the constant speed how many miles did she ride in 1 hour
Nesterboy [21]

find unit rate:

36 / 6 = 6

she can ride 6 miles in 1 hour

5 0
3 years ago
Read 2 more answers
3х + бх = ух<br> What I the answer
Dominik [7]

Answer:

dy=9-y

dx=x

Step-by-step explanation:

5 0
3 years ago
Ms. Allen makes beaded purses. She used 4,725 beads to make 3 identical purses (they are exactly the same and use the same numbe
solong [7]
4,725 divided by 3 equals 1,575
5 0
3 years ago
What is the surface area to each tower in this problem
djverab [1.8K]

Answer:

What problem

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • 12,11,28,27,44,43,60,59 what number pattern?
    7·2 answers
  • Which outcomes are in A or B ?
    14·2 answers
  • For the same food trailer mentioned in Example 1, explain how to find the experimental probability that the next order is two pi
    10·1 answer
  • The perimeter of a rectangular painting is 310 centimeters. If the width of the painting is 56 centim
    8·2 answers
  • 5 (15pts, 5pts each) In △ABC below, ED = 6 cm, EC = CB, and AC ⊥ BE . If AC = 12 cm and AB = 13 cm:
    5·1 answer
  • Um i need help on this lol
    12·2 answers
  • Pls help I will give brainliest<br> I need help with question#15
    8·1 answer
  • I need help with number 9
    13·1 answer
  • Felix joins a local recreation center to play basketball.The recreation center charges a $20 annual fee, plus an additional $15
    12·1 answer
  • Consider the linear equation y = 5x – 4.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!