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
omeli [17]
3 years ago
13

If 3x+7=x-1, then does x = -4?

Mathematics
2 answers:
devlian [24]3 years ago
7 0

Hey there!!

To check whether x= -4, let's solve the equation.

Given:

3x+7 = x-1

Subtracting 2x on both sides:

2x + 7 = -1

Subtracting 7 on both sides:

2x = -1-7

2x = -8

Dividing 2 on both sides:

x = -8/2

x = -4

<u><em>Yes, x is -4. </em></u>

<u><em>Hope it helps!</em></u>

iragen [17]3 years ago
6 0

Answer:

Yes

Step-by-step explanation:

You multiply 3 by -4 to get -12, then add 7 to make the left side of the equation -5. On the right side, all you have to do is do -4 minus 1, which is -5. That being said, yes x=-4

You might be interested in
Help pls 25 points don’t answer if you do not know
-Dominant- [34]

Answer:

i believe it’s graph A

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What's the area of a triangle of 14ft and 17ft
BlackZzzverrR [31]
14 x17 = 238 feet. Area is just length times width
8 0
3 years ago
The graph shows the solution to which system of equations?
Sedaia [141]
So let's start by guesstimating the slopes:
the green line has a slope close to -x, but more negative than that, possibly -2; the pink line has a slope close to +x, but higher towards +2.

Next let's look at the solution: the two lines intersect at the point (1, -1).
**you could just simple plug that x (1) into all the equations, but let's rule out answers anyway. ;)

A) is incorrect because the slopes of -1 and +1 are off from out predicted -2 and +2
B) is incorrect because of a similar reason, the slopes of +3 and +1 don't make any sense
C) Ooh, we do have a +2 and -2 for the slopes, and... violà! plug in 1 for the x's and we get -1 for the y in both equations
D) slopes are closer than in A and B, but plugging in 1 doesn't get us -1

So the correct answer is:
C) y = 2x - 3 and y = −2x + 1
6 0
3 years ago
Olga’s family traveled 942 kilometers on the first day of their trip and 894.5 kilometers on the second day. How many more meter
lawyer [7]
47,500 hope i helped have a snazzy day
8 0
4 years ago
Read 2 more answers
F(x)=3x+10x and g(x)=2x-4, find (f+g)(x)
djyliett [7]

Answer:

15x - 4

Step-by-step explanation:

Add both of the equations together.

f(x) + g(x)

(3x + 10x) + (2x -4)

Then, combine like terms

3x + 2x + 10x = 15x

15x - 4

8 0
4 years ago
Read 2 more answers
Other questions:
  • Question 4 Multiple Choice Worth 6 points)
    15·1 answer
  • At her job, Jessie earns $9.50 per hour. She also earns a $60 bonus every month.
    13·2 answers
  • The population of locusts in a certain swarm doubles every two hours. If 4 hours ago there were 1,000 locusts in the swarm, in a
    9·1 answer
  • Someone who understands functions help
    13·2 answers
  • What is the value of x in this figure?
    15·1 answer
  • HELP I NEED TO COMPLEYE THSISJI toDay
    7·2 answers
  • Explain your answer !!<br><br> Have a great day <br><br> Will give brainlst
    6·2 answers
  • Solve the equation 7x-4(-4x-16)= -166
    13·2 answers
  • Need help ASAP pls!!!
    5·1 answer
  • Please help best answer gets brainliest
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!