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
Lelechka [254]
3 years ago
8

Find the value of the variable for which the value of the expression –3(2x+1) is 20 greater than the value of the expression 8x+

5
Mathematics
1 answer:
Charra [1.4K]3 years ago
6 0
<h3>Answer:</h3>

-2

<h3>Step-by-step explanation:</h3>

20 greater than 8x +5 is ...

... 8x +5 +20 = 8x +25

We want this value to be -3(2x +1), so we want to solve the equation ...

... 8x +25 = -3(2x +1)

... 8x +25 = -6x -3 . . . . . . eliminate parentheses

... 14x = -28 . . . . . . . . . . . add 6x-25

... x = -2 . . . . . . . . . . . . . . divide by the coefficient of x

The desired value of the variable is -2.

_____

<u>Check</u>

-3(2x+1) = -3(2(-2)+1) = -3(-3) = 9

8x+5 = 8(-2) +5 = -11

9 is 20 greater than -11, so the answer checks OK.

You might be interested in
Answer?? what’s is the value of a
max2010maxim [7]

Answer:

13

Step-by-step explanation:

since the inside of a triangle is equal to 180

180-42-73=65

65/5=13 so 13 should be the answer.

6 0
3 years ago
Read 2 more answers
Identify 3 major arcs of circle that contain point A?
natita [175]

Answer:

Minor Arcs (two capital letters) Arcs that have a degree measure of less than 180 degrees.

Major Arc (three capital letters) Arcs that have a degree measure greater than 180 degrees.

Semi Circle (three capital letters) Arcs that have a degree measure equal to 180 degrees.Step-by-step explanation:

3 0
2 years ago
Celeste needs to create a keyword map that branches out from an image of the solar system. Which image best
Veseljchak [2.6K]

Answer:

The Correct Answer Is C

Step-by-step explanation:

4 0
3 years ago
Name the property or definition illustrated below
dimulka [17.4K]

Answer: Substitution

Step-by-step explanation:

GIVEN:

y=3x

2x+4y=12

Then, 2x+4(3x)=12

-----------------------------------------

Substitution: replacing one variable in terms of another variable.

As we can see from the given aspects, y=3x, and the conclusion expression has no y instead of 3x. This means it represented y in terms of x, which fits the definition of substitution that replaces one variable.

Hope this helps!! :)

6 0
3 years ago
Simplify by performing long division.
olga_2 [115]

Answer:

the answer is A. 3x-2+2/x+1

3 0
2 years ago
Other questions:
  • Ben's Auto Dealer had a sale on Saturday for its new cars. By 10 a.m. 30% of the new cars had been sold. What decimal represents
    6·2 answers
  • Hey can you please help me posted picture of question
    5·1 answer
  • 2.4 +(-3.6)? Please answer quick I need help.
    12·2 answers
  • What measurement is equal to 24 kilograms
    9·2 answers
  • Clara is growing her hair out and wants it to be no longer than 15 cm but more than 11 cm. Her hair is 7 cm right now and grows
    12·1 answer
  • How many different​ 10-letter words​ (real or​ imaginary) can be formed from the following​ letters? R, K, K, A, P, T, K, P, Q,
    6·1 answer
  • How did you determine which value to use for the constant and which value to use for the coefficient?
    8·2 answers
  • Solve the equation for x:<br> 4x2 + 15x = 4<br> Show steps please
    14·1 answer
  • 10
    9·1 answer
  • PLEASE IM SO LOST RN<br> Can someone please answer the first 3 questions
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!