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
elena55 [62]
3 years ago
14

What is the value of x in the equation 8+4 = 2(x-1)? a. 5 b. 11/2 c. 13/2 d. 7

Mathematics
1 answer:
sergiy2304 [10]3 years ago
3 0

Answer:7

Step-by-step explanation:

8+4=12

2(x-1)= 2x-2

12=2x-2

now add 2 to both sides

14=2x

And divide both sides by 2

7=x

You might be interested in
The points (1,-10) and (r,2) fall on a line with a slope of 2 what is the value of r.
zalisa [80]

The value of r in the given coordinates with their slope is; r = 7

How to find the Slope of a Line?

The formula for slope of a line passing through 2 points is;

m = (y2 - y1)/(x2 - x1)

We are given the coordinates as;

(1,-10) and (r,2)

The slope of the line passing through this coordinates is 2. Thus;

(2 + 10)/(r - 1) = 2

12 = 2r - 2

2r = 14

r = 14/2

r = 7

Read more about Slope of a Line at; brainly.com/question/3493733

#SPJ1

3 0
1 year ago
Find the difference.<br><br> (3x3−2x2+4x−8)−(5x3+12x2−3x−4)=
Lunna [17]

Answer:

-2x³ - 14x² + 7x - 4

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

(3x³ - 2x² + 4x - 8) - (5x³ + 12x² - 3x - 4)

<u>Step 2: Simplify</u>

  1. [Distributive Property] Distribute negative:                                                    3x³ - 2x² + 4x - 8 - 5x³ - 12x² + 3x + 4
  2. Combine like terms (x³):                                                                                   -2x³ - 2x² + 4x - 8 - 12x² + 3x + 4
  3. Combine like terms (x²):                                                                                   -2x³ - 14x² + 4x - 8 + 3x + 4
  4. Combine like terms (x):                                                                                    -2x³ - 14x² + 7x - 8 + 4
  5. Combine like terms:                                                                                         -2x³ - 14x² + 7x - 4
7 0
3 years ago
ツ---Graph y=-x^2-2. Identify the vertex of the graph.Tell whether it is a minimum or maximum.---ツ
balandron [24]

Hey!

Hope this Helps...

~~~~~~~~~~~~~~~~~~~~~~~~~

Below, I added what the graph of (x^2)-2 looks like...

The answer is A. (0, -2); Minimum

7 0
3 years ago
Read 2 more answers
Simplify the expression below. Make sure to reduce all fractions.<br><br> 8sec(x)/-7sec(x)
Sidana [21]

Answer:

- \frac{8}{7}

Step-by-step explanation:

Given

\frac{8secx}{-7secx} ← cancel sec x on numerator/ denominator

= \frac{8}{-7}

= - \frac{8}{7}

7 0
3 years ago
I need some answers please please please
8_murik_8 [283]

Answer:

what does slope mean?

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which equation does the graph of the systems of equations solve?
    7·1 answer
  • What is the value of (4-2)^3-3X4<br> o -20<br> o -4<br> o 4<br> o 20
    7·2 answers
  • F varies jointly as g, h, and j. One set of values is f = 18, g = 4, h=3, j=5. Find f when g= 5, h=12,and j=3
    7·1 answer
  • Write 3 5/7 as an improper fraction.
    5·2 answers
  • Tom is afraid of heights above 9 feet. He is asked to repair a side of a high deck. The bottom of a ladder must be placed 6 feet
    11·2 answers
  • Which statement describes how the graph of the given polynomial would change if the term -3x6 is adde
    10·1 answer
  • I need help! Please answer before 4:00 pm today! Thank you so much!
    13·1 answer
  • Describe how you know that (8+9)+3 is equivalent to 8+(9+3). What is the benefit to using this property
    7·1 answer
  • 8. The local radio station surveyed listeners and asked about their favorite type of music. The results showed
    7·2 answers
  • Chloe's family ate dinner at a restaurant and the bill was $86. If sales tax was 7.5% and they tipped 20% of the original bill,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!