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
mihalych1998 [28]
2 years ago
15

Solve for x. 7(1x - 3) = 4(x + 5)

Mathematics
1 answer:
alexandr1967 [171]2 years ago
6 0

Answer:

x = 41/3

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

7(1x - 3) = 4(x + 5)

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Simplify:                                        7(x - 3) = 4(x + 5)
  2. Distribute:                                     7x - 21 = 4x + 20
  3. Subtract 4x on both sides:          3x - 21 = 20
  4. Add 21 on both sides:                  3x = 41
  5. Divide 3 on both sides:                x = 41/3

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                    7(1(41/3) - 3) = 4(41/3 + 5)
  2. Multiply:                        7(41/3 - 3) = 4(41/3 + 5)
  3. Subtract/Add:               7(32/3) = 4(56/3)
  4. Multiply:                        224/3 = 224/3

Here, we see that 224/3 is indeed equivalent to 224/3. ∴ x = 41/3 is a solution to the equation.

And we have our final answer!

You might be interested in
As part of a survey, 150 students were asked to name their favorite class. 50 points
disa [49]
A:40%
If you put 60 over 150 and x(percent of students) over 100 and cross multiply 100 and 60, you will get 6000. You then divide that by 150 which leaves you with 40 as x and 40 over 100 is 40%.
5 0
3 years ago
The average depth of the ocean is about 3.8 km.width of 7600 km. calculate the ratio depth:width?
Gnoma [55]
A ratio is like a fraction, so since you are provided with the numbers its easy to put it into a ratio 
depth is 3.8km
width is 7600km
ratio is 3.8:7600
5 0
3 years ago
Can someone pls help?? i’ll mark brainlist
Vaselesa [24]

Answer:

D

Step-by-step explanation:

The line of symmetry is at (-1, 9).

4 0
2 years ago
Read 2 more answers
In a triangle, two angles have measures of 45 degrees and 85 degrees. What is the measure of the third angle in this triangle?
Blizzard [7]

Answer:

50 degrees

Step-by-step explanation:

All three angles in a triangle add up to 180 degrees. If you know the measure of two angles, add them together and subtract the sum from 180.  

45+85=130.  Then, subtract 130 from the total, or 180.   180-130=50. The measure of the third angle of the triangle is 50 degrees.

5 0
3 years ago
Help me!! please. find the number of each numbered angle
Whitepunk [10]

Answer:

Angle(1) = 60°

Angle(2) = 50°

Angle(3) = 70°

Explanation:

I'm much too tired to explain it rn but still if you really need the explanation, I'll give it to you in the comments section :)

5 0
3 years ago
Other questions:
  • What is the answer for 8x+3(x-4)
    8·2 answers
  • A large ice floe is floating at a speed of 3 kilometers per hour. A polar bear leaves the floe and swims in the opposite directi
    6·1 answer
  • Identify the percent of change as an increase or a decrease. 1/4 to 1/2 Find the percent of change. Round to the nearest tenth o
    6·1 answer
  • License plates are made using 3 letters followed by 2 digits. How many plates can be made if repetition of letters and digits is
    8·1 answer
  • Complete the conjecture: The product of two odd numbers is _____. A.odd B.prime C.even D.negative
    12·2 answers
  • I NEED HELP. What is the answer?
    10·1 answer
  • The side lengths of a triangle are 12,^149,^5. Is the triangle a right triangle?
    6·1 answer
  • Oh please help me i don't know how to do it
    11·2 answers
  • 5 cm 9 cm 13 cm What is Volume of the Rectangular Prism?​
    13·1 answer
  • Pls help meeee the question is in the photo pls no links or fake answers pls answer both questions
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!