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
Ronch [10]
3 years ago
7

What is -2(x + 7) in math

Mathematics
1 answer:
rewona [7]3 years ago
5 0
Apply the distributive property, which says that a(b+c)= ab+ac.

-2(x+7)= -2(x)+ -2(7)

-2(x)= -2x
-2(7)=-14

Put it together.

Final answer: -2x-14
You might be interested in
Help me on this??? Will mark as Brainiest
Leviafan [203]

Answer:11 and 12 is g and g and answer 13 is 5.36487494991

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
20 POINTS!!! HELP ME!!!! Use the linear combination method to solve the system of equations. Explain each step of your solution.
madreJ [45]

The solution of the system of equations is (-3 , -2)

Step-by-step explanation:

Steps for Using Linear Combinations Method)

  • Arrange the equations with like terms in columns
  • Analyze the coefficients of x or y
  • Add the equations and solve for the remaining variable
  • Substitute the value into either equation and solve

∵ 3 x - 8 y = 7 ⇒ (1)

∵ x + 2 y = -7 ⇒ (2)

- Multiply equation (2) by 4 to make the coefficients of y are equal in

 magnitude and different in sign

∴ 4 x + 8 y = -28 ⇒ (3)

Add equations (1) and (3)

∵ 3 x - 8 y = 7 ⇒ (1)

∵ 4 x + 8 y = -28 ⇒ (3)

∴ 7 x = -21

- Divide both sides by 7

∴ x = -3

Substitute the value of x in equation (2) to find y

∵ x + 2 y = -7 ⇒ (2)

∵ x = -3

∴ -3 + 2 y = -7

- Add 3 to both sides

∴ 2 y = -4

- Divide both sides by 2

∴ y = -2

The solution of the system of equations is (-3 , -2)

Learn more:

You can learn more about the system of the linear equations in brainly.com/question/13168205

#LearnwithBrainly

7 0
3 years ago
How do I find the restrictions on x if there are any? <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7Bx%20-%201%7D%20%20%3
Natali5045456 [20]

We have the expression:

\frac{1}{x - 1}=\frac{5}{x - 10}

When we have rational functions, where the denominator is a function of x, we have a restriction for the domain for any value of x that makes the denominator equal to 0.

That is because if the denominator is 0, then we have a function f(x) that is a division by zero and is undefined.

If we have a value that makes f(x) to be undefined, then this value of x does not belong to the domain of f(x).

Expression:

\begin{gathered} \frac{1}{x-1}=\frac{5}{x-10} \\ \frac{x-1}{1}=\frac{x-10}{5} \\ x-1=\frac{x}{5}-\frac{10}{5} \\ x-1=\frac{1}{5}x-2 \\ x-\frac{1}{5}x=-2+1 \\ \frac{4}{5}x=-1 \\ x=-1\cdot\frac{5}{4} \\ x=-\frac{5}{4} \end{gathered}

Answer: There is no restriction for x in the expression.

6 0
1 year ago
Evaluate the following -5+4-3-6+9-3
Amanda [17]

Answer:

-4

Step-by-step explanation:

-5+4= -1

-1-3= -4

-4-6= -10

-10+9= -1

-1-3= -4

3 0
3 years ago
For a school fundraiser Jeff sold large boxes of candy for three dollars each and small boxes of candy for two dollars each if y
Nookie1986 [14]

Answer:

C

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • How do I find x by using the square root property?
    14·1 answer
  • Solve the system of equations. 2.5y + 3x = 27 5x – 2.5y = 5 What equation is the result of adding the two equations? –8x = 328x
    9·2 answers
  • What are the points of discontinuity? Are they all removable? Please show your work.
    6·1 answer
  • If y varies inversely as x and y = 8 when x = 3, find the value of x when y = 12.
    12·1 answer
  • PLEASEEE HEEELLLPPP MEE!
    12·2 answers
  • If right I’ll mark brainiest
    13·1 answer
  • PLS HELP ME PLSSSS WHATS THE ANSWER
    10·1 answer
  • 20/10 + 12/100<br> helpppppppppppppppppppp
    9·2 answers
  • If 2x = 3y + 11 and 2^x = 2^4(y+1), determine the value of x+y
    10·1 answer
  • Please help me with this
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!