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]
3 years ago
8

7x+2=-2+5x+14 solve for x

Mathematics
1 answer:
goblinko [34]3 years ago
3 0

7x + 2 = -2 + 5x + 14\\7x - 5x = -2 + 14 - 2\\2x = 10\\x = 5

You might be interested in
Which system of inequalities is represented by the graph?
timofeeve [1]

Answer:

The system of inequalities " x + 2 y ≤ 5 and 3 x + y ≤ 4 " is represented by the graph ⇒ D

Step-by-step explanation:

To find the answer let us find the equation of each line

Blue line:

∵ The line passes through points (5 , 0) and (0 , 2.5)

- Find the slope of the line

∵ m = Δy/Δx

∴ \frac{0-2.5}{5-0}=\frac{-2.5}{5}

∴ m = -0.5

- The form of the equation is y = m x  + b, where b is the

   y-intercept (value y at x = 0)

∵ y = 2.5 at x = 0

∴ b = 2.5

- Write the equation of the line

∴ y = - 0.5 x + 2.5

- Multiply both sides by 2

∴ The equation of the blue line is 2 y = - x + 5

- The shading is under the line and the line is solid, that means

  2 y is less than or equal - x + 5

∴ The inequality of the blue line is 2 y ≤ - x + 5

Red line:

∵ The line passes through points (3 , -5) and (0 , 4)

- Find the slope of the line

∴ m=\frac{-5-4}{3-0}=\frac{-9}{3}

∴ m = -3

∵ y = 4 at x = 0

∴ b = 4

- Write the equation of the line

∴ y =  -3 x + 4

∴ The equation of the red line is y = -3 x + 4

- The shading is below the line and the line is solid, that means

  y is less than or equal -3 x + 4

∴ The inequality of the red line is y ≤ -3 x + 4

Let us find which answer is the same with this system of inequalities

∵ 2 y ≤ - x + 5

- Add x to both sides

∴ x + 2 y ≤ 5 ⇒ same as the first inequality of answer D

∵ y ≤ -3 x + 4

- Add 3 x to both sides

∴ 3 x + y ≤ 4 ⇒ same as the second inequality of answer D

The system of inequalities " x + 2 y ≤ 5 and 3 x + y ≤ 4" is represented by the graph

4 0
3 years ago
The grades of a science test are normally distributed. Thanh finds that his grade on the test has a z-score of –2.5. Which state
liraira [26]
From all those aforementioned, the true statement is: Thanh’s grade is 2.5 standard deviations below the mean of the test grades. 
7 0
2 years ago
Read 2 more answers
PLZ HELPPPPPPPPPP<br>IT UA DUE IN 30 MINUTES​
LenKa [72]

Answer:

yes

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Which angles are congruent by the Corresponding Angles Theorem?
balu736 [363]

Step-by-step explanation:

I think it is B but I may be wrong I don't know

3 0
3 years ago
Identify the constant and coefficient<br> 7 – 4x = 12 4x – 7 = 12 12 = 4x + 7
schepotkina [342]

Answer:

Constants: 7 and 12

Coefficients: 4

Step-by-step explanation:

A constant is number without a variable next to it, while a coefficient is a number with a variable next to it.

3 0
2 years ago
Read 2 more answers
Other questions:
  • Is 0.6 less then five eighths
    13·2 answers
  • Triangle ABC is being dilated with the center of dilation at the origin. The image of C, point C' has coordinates of (7.2, 3.6).
    11·2 answers
  • I buy 4.50 yards of material at $4.47 what is the totoal cost of material
    5·1 answer
  • I'm still stuck on this one
    6·1 answer
  • Determine the answer of c. X^2+16x+c
    15·1 answer
  • What is the missing angel in the triangle 69,34,
    14·2 answers
  • Which letters have 1-fold reflectional symmetry?
    5·1 answer
  • Blank - 2 1/3 = 3 1/3 please help I need to finish my homework :(
    14·2 answers
  • Which set of numbers includes only integers?
    13·2 answers
  • Yuki bought a drop–leaf kitchen table. The rectangular part of the table is a 1–by–5–foot rectangle with a semicircle at each en
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!