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
mixer [17]
3 years ago
15

Which is the solution to -3k-2k+12 = 2k-9?​

Mathematics
2 answers:
Lisa [10]3 years ago
8 0

Answer:

k =3

Step-by-step explanation:

-3k-2k+12 = 2k-9

-5k+12 = 2k -9

Add 5k to each side

-5k+5k+12 = 2k+5k-9

12 = 7k-9

Add 9 to each side

12 +9 = 7k-9+9

21 = 7k

Divide each side by 7

21/7 = 7k/7

3 =k

yarga [219]3 years ago
4 0

<em>answer = 3 \\ solution \\  - 3k - 2k + 12 = 2k - 9 \\ or, \:  - 3k - 2k - 2k =  - 12 - 9 \\ or, \:  - 5k - 2k =  - 21 \\ or, \:  - 7k =  - 21 \\ or, \: k =  \frac{ - 21}{ - 7}  \\ k = 3 \\ hope \: it \: helps \\ good \: luck \: on \: your \: assignment</em>

You might be interested in
The perimeter of a church window is 60 inches. If the window is in the shape of a regular pentagon, what is the length of each s
iren2701 [21]
<span>The length of each side of pentagonal church window with the perimeter of 60 inches is C. 12 inches. The perimeter (P) of a pentagon is the sum of its side lengths (s). Since pentagon has 5 sides, the perimeter of the pentagon is: P = 5s. If we know that the perimeter is 60 inches, the side length will be: 60 in = 5s. s = 60 in / 5. s = 12 in. The length of the side of the window is 12 inches.</span><span />
4 0
3 years ago
Read 2 more answers
I need step by step help on how to work out this percentage question ​
11Alexandr11 [23.1K]

Answer:

  • $15.7, $141.3

Step-by-step explanation:

Discount

  • 157*0.1 = $15.7

Sale price

  • 157 - 15.7 = $141.3
8 0
2 years ago
The Sum Of Two Numbers Is 50 And The Difference Is 18. What Are The Numbers?
mart [117]
<span>The sum of two numbers is 50. The smaller number is 18 less than the larger number. What are the numbers?
-----
Equations:
x + y = 50
x = y - 18
-------------------
Add and solve for "x"::

2x = 32
x = 16
-----
Solve for "y"::
16 + y = 50
y = 34
-----------------
Hope I helped!

~Tomas</span>
3 0
4 years ago
4. The table shows the heights of the winners and runners-up of 8 presidential elections. Find the
oee [108]
Pls help or ill fail
BRAINLIST REWARD

1) Adrianna wants to purchase GoodLife membership.When she visits the website, shedecides she wants to purchase a plan that charges $25 per month and has an initial cost of $90.What is the linear equation that represents how much Adrianna has to pay GoodLife

2) Anthony wants to purchase a Disney+ subscription.He visits the website anddecides to sign up for a plan that charges $17 per month. If the plan has no initial cost, what isthe linear equation? How much will he spend after 5 months?

3) :Sebastian wants to purchase a Premium Spotify subscription to listen to musicoffline and without ads. The plan that he chose is $10 per month and costs $15 up front. Write alinear equation to represent the cost. How much will Sebastian spend after 1 year?
3 0
2 years ago
3x + 3y =15 and x = -3y -1
saul85 [17]

Answer:

  (x, y) = (8, -3)

Step-by-step explanation:

You can substitute for x in the first equation:

  3(-3y -1) +3y = 15

  -6y = 18 . . . . . add 3 and simplify

  y = -3 . . . . . . . divide by -6

  x = -3(-3) -1 = 8 . . . . find x using the second equation

The solution to this system of equations is (x, y) = (8, -3).

4 0
3 years ago
Other questions:
  • I WILL AWARD BRAINLIEST!
    15·2 answers
  • What’s number one and how do You do it
    12·2 answers
  • Jacyln thinks that -1/2 is greater than 1/4 because it is father from zero on the number line. Is her thinking correct? Explain
    8·2 answers
  • What is the answer for #14?
    14·1 answer
  • Paul, who is self employed, placed $30,000 in an account that pays 6% annual interest, compounded quarterly. How much interest w
    6·1 answer
  • SOMEONE PLEASE HELP ME!!!!!
    15·1 answer
  • Https://m.eet.go.ogle.com/tjc-pyur-uqo anyone can join ^3^
    6·1 answer
  • Simplify like terms.<br> 2d – 3f – 6d+5f
    10·2 answers
  • Monica walks 2 miles each day Monday through Friday. She walks 3 miles on Saturday. She does not walk on Sunday. Monica calculat
    10·1 answer
  • Please help me with this
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!