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
Levart [38]
3 years ago
14

3x + 1 + 5x = 7 +15 + 7x

Mathematics
2 answers:
KatRina [158]3 years ago
6 0
3x + 1 + 5x = 7 +15 + 7x

Move unknown terms to the left of the equal with changed sign and the known terms to the right of the equal with changed sign.

3x + 5x - 7x = 7 + 15 - 1

x = 21
Lelu [443]3 years ago
3 0
Combine like terms on each side of the equation...

8x+1=7x+22  subtract 1 from both sides

8x=7x+21  subtract 7x from both sides

x=21
You might be interested in
At 9:00, Paula has x cups of food in a container for her dog. Paula pours a 2 1/2 cup box of fodd into the container. Then she r
Anestetic [448]

Answer:

X = 21/4 - 7/4 = 14/4 = 7/2 = 3 and 1/2

Step-by-step explanation:

X + (2 and 1/2) - 3/4 = 5 and 1/4

X + 2 and 2/4  - 3/4 = 5 and 1/4  <--- common denominator

X + 10/4 - 3/4 = 21/4

X + 7/4 = 21/4

X = 21/4 - 7/4 = 14/4 = 7/2 = 3 and 1/2

3 0
3 years ago
Read 2 more answers
A sidewalk forms the diagonal of a square park. The sidewalk is 30 meters long. To the nearest tenth of a meter, how long are th
PtichkaEL [24]
<span> <span>We can use the Pythagorean Theorem (A² + B² = C²) to solve for the lengths of the sides. We know that the diagonal, C, is 30 meters long, so C² = 900 meters. We know that since the park is square, A² + B² = 2A² = 2B²

900 = 2A²

A^2 = 450

Taking the square root of 450, we find that the lengths of A and B are roughly 21.2 meters.</span> </span>
8 0
3 years ago
Read 2 more answers
Describe the transformation that maps the pre-image (ΔA) to the image (ΔA').
ser-zykov [4K]

Answer:

A)  : \\  a \:  rotation \:  \\  180°  \: clockwise \:  around  \: the  \: origin

7 0
2 years ago
Read 2 more answers
Help. also explain :) please
Anuta_ua [19.1K]
The answer is £140

First you find 20% of 1200 (which is basically 20 times 12) which gives you £240.

You add £240 to £1200 which is £1440

Then you take £300 off £1440 since he already paid the deposit.

That leaves you with £1140

1140 divided by 10 is 114
5 0
3 years ago
Cherries cost $4.99 per pound. If Lacey buys 3.5 pounds, how much will she pay for the cherries?
Vladimir79 [104]
It would $17.47. if you times $4.99 by 3.5 pounds of cherries then your answer will be $17.47
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is opposite negative 7 5 over 12
    12·1 answer
  • Find the balance of $2,500 deposited at 3% compounded annually for 3 years
    12·2 answers
  • Find two consecutive integers whose sum is -47
    12·1 answer
  • A shoebox is covered with packing paper before being shipped. The paper cost $0.02 per square inch. How much will it cost to cov
    9·1 answer
  • What is 7999 +9100=?????????
    11·1 answer
  • Y+2 = -3(x – 4)<br> Complete the missing value in the solution to the equation. <br><br> (?, -2)
    7·1 answer
  • Complete the table and graph the coordinates pls sumone just tell me what to put in the table bc i ik how to do the graph brainl
    12·2 answers
  • SOSOSOSOSOSOSOSOSOSOSOS
    5·2 answers
  • NEED THE ANSWERS NOWWWW!!!!!!!!!!!!! Please do the table and the questions
    12·2 answers
  • What equals -6 and 11
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!