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
Ipatiy [6.2K]
3 years ago
11

I need help solving this problem, please respond as fast as you can. -7 – 3x = 1x + 4(2 + x)

Mathematics
1 answer:
Ratling [72]3 years ago
6 0

Answer:

x = -15/8

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

-7 - 3x = 1x + 4(2 + x)

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

  1. Distribute 4:                                                                                                    -7 - 3x = x + 8 + 4x
  2. Combine like terms:                                                                                       -7 - 3x = 5x + 8
  3. [Addition Property of Equality] Add 3x on both sides:                                -7 = 8x + 8
  4. [Subtraction Property of Equality] Subtract 8 on both sides:                      -15 = 8x
  5. [Division Property of Equality] Divide 8 on both sides:                               -15/8 = x
  6. Rewrite/Rearrange:                                                                                        x = -15/8
You might be interested in
The weight of an object on Venus is approximately 9/10 of its weight on Earth. The weight of an object
Sergeeva-Olga [200]

An object weighs 140 pounds more on Jupiter than it weighs on Venus. By simple algebraic operations, the required value is calculated.

<h3>What are the algebraic operations?</h3>

Addition, subtraction, multiplication, and division are the basic algebraic operations that are used for many computations.

<h3>Calculation:</h3>

It is given that,

An object's weight on Venus is approximately 9/10 of its weight on earth. I.e., WV = 9/10 WE

An object's weight on Jupiter is approximately 23/10 of its weight on earth. I.e., WJ = 23/10 WE

If an object weighs 100 pounds on earth, then

The weight of the object on Venus is

WV = 9/10 × 100 = 90 pounds

The weight of the object on Jupiter is

WJ = 23/10 × 100 = 230

Thus, the difference between them is 230 - 90 = 140 pounds.

So, the object weighs 140 pounds more on Jupiter than on Venus.

Learn more about algebraic operations here:

brainly.com/question/24935016

#SPJ4

8 0
1 year ago
Use Gauss-Jordan elimination to solve the following linear system.
marysya [2.9K]
Just put the coefients in to a matrix

1x-6y-3z=4
-2x+0y-3z=-8
-2x+2y-3z=-14

\left[\begin{array}{ccc}1&-6&-3|4\\-2&0&-3|-8\\-2&2&-3|-14\end{array}\right]
mulstiply 2nd row by -1 and add to 3rd
\left[\begin{array}{ccc}1&-6&-3|4\\-2&0&-3|-8\\0&2&0|-6\end{array}\right]
divde last row by 2
\left[\begin{array}{ccc}1&-6&-3|4\\-2&0&-3|-8\\0&1&0|-3\end{array}\right]
multiply 2rd row by 6 and add to top one
\left[\begin{array}{ccc}1&0&-3|-14\\-2&0&-3|-8\\0&1&0|-3\end{array}\right]
multiply 1st row by -1 and add to 2nd
\left[\begin{array}{ccc}1&0&-3|-14\\-3&0&0|6\\0&1&0|-3\end{array}\right]
divide 2nd row by -3
\left[\begin{array}{ccc}1&0&-3|-14\\1&0&0|-2\\0&1&0|-3\end{array}\right]
mulstiply 2nd row by -1 and add to 1st row
\left[\begin{array}{ccc}0&0&-3|-12\\1&0&0|-2\\0&1&0|-3\end{array}\right]
divide 1st row by -3
\left[\begin{array}{ccc}0&0&1|4\\1&0&0|-2\\0&1&0|-3\end{array}\right]

rerange
\left[\begin{array}{ccc}1&0&0|-2\\0&1&0|-3\\0&0&1| 4\end{array}\right]

x=-2
y=-3
z=4
(x,y,z)
(-2,-3,4)

B is answer
7 0
3 years ago
What is the answer to 3 times 1 plz write correct answer
il63 [147K]

Answer:

3

Step-by-step explanation:

the answer to 3 times 1 is 3

7 0
2 years ago
When two parallel lines are cut by a transversal, argles A and B are alternate Interior angles that each measure 105°. What is t
USPshnik [31]

Answer:

The angle for the other interior angel is 75°, all you have to do is subtract 180, from the 105

Step-by-step explanation:

8 0
3 years ago
HELP ME BRAIN NO THINK
Novosadov [1.4K]

Answer:

what's the question?..................

3 0
3 years ago
Other questions:
  • Write and solve an equation to evaluate. 35% of what number is 56
    10·1 answer
  • What single decimal multiplier would you use to increase by 4% followed by a 3% increase
    8·1 answer
  • Is my proportion right or wrong...if not what is the correct answer?!!
    15·2 answers
  • Write the equation in standard form and give the values of a, b, and c.<br> y = -5x + 1
    6·1 answer
  • What decimal is equivalent to 29/11
    15·2 answers
  • Find the residual values, and use the graphing calculator tool to make a residual plot.
    15·2 answers
  • Help,anyone can help me do quetion a and b.​
    15·1 answer
  • At 9 a.m., a freight train leaves Boston for NY C, traveling at an average rate of 24
    15·1 answer
  • Help plzzz just this
    14·2 answers
  • Help please? giving brainliest!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!