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
kolbaska11 [484]
3 years ago
10

9) Three times a number added to 12 gives -6. Find the number.​

Mathematics
2 answers:
KatRina [158]3 years ago
7 0

Answer:

The number is -6.

Step-by-step explanation:

Variable x = a number

Set up an equation:

3x + 12 = -6

Isolate variable x:

3x = -18

x = -6

Check your work:

3(-6) + 12 = -6

-18 + 12 = -6

-6 = -6

Correct!

Rudik [331]3 years ago
4 0

Answer:

3x +12=-6

3x=-6-12

3x=-18

x=-18/3

x=-6

You might be interested in
Find the slope of the line that contains<br> the points (6, 8) and (2, 1).
yawa3891 [41]

Answer:

7/4 or 1.75

Step-by-step explanation:

Assuming this is a linear function, you can use the slope formula of change in y-values divided by change in x-values. Take your y-values (8 - 1), which is seven. Then take your x-values (6-2), which is equal to 4. Then your slope is just 7/4 or 1.75.

7 0
3 years ago
Read 2 more answers
HELP I WILL GIVE BRAINLIEST AND THANK AND 5 STAR!
photoshop1234 [79]

Answer:

4.     2

Step-by-step explanation:

Subtitue the value of variable into the equation and simplify 2

5 0
3 years ago
Read 2 more answers
Help me as quick as possible <br> 11x+4y=12<br> 9x-4y=8<br> Solve it with elimination method
Firdavs [7]

Answer:

x = 1, y = 1/4

Step-by-step explanation:

11x + 4 y = 12   \ \ \ ---( 1)\\9x -4y = 8 \ \ \  - - - (2)\\\\(1) + ( 2 ) => 20x + 0 = 20\\\\

            => x = 1

Substitute x = 1 in ( 1 ) :  

                            11 + 4y = 12\\4y = 12 - 11\\\\y =\frac{1}{4}

3 0
3 years ago
Can someone explain how I do this problem for problem 1?
Setler79 [48]

Answer:

13.5

8.64

Step-by-step explanation:

1) 9/100  * 150 = 13.5

2) 12/100  *72= 8.64

it means if some thing represents 9 of 100 , so by how much will it represent of a certain number (ex: 150)

3 0
2 years ago
Read 2 more answers
What is the answer in these boxes
TiliK225 [7]

Answer:

I found that the answer is (5,1)

Step-by-step explanation:

4 times x(5) is 20

3 times y(1) is 3

20 + 3 = 23

bottom equation:

x(5) -- 5y(1) = 0

4 0
3 years ago
Other questions:
  • Calculate 6.75 tax on 23.05
    7·1 answer
  • Help please !!!!!!!!!!!!!!
    8·1 answer
  • A carton can hold 1 000 unit cubes that mesaure 1inch by 1 inch by 1 inch.Describ the dimenisons of the carton using the units c
    7·1 answer
  • Carl, Gilda, Conroy, and Kyla are the four candidates in a school election. Carl received 1/5 of the votes, Gilda received 5% of
    10·2 answers
  • Please answer this correctly
    9·2 answers
  • I'm so confused please help​
    10·1 answer
  • Find 2 and 2/3 x 1 and 1/4
    14·1 answer
  • valentina has a rectangle garden in her backyard. she wants to fence in it so her dog Walter doesn’t dig up her plants . one sid
    10·1 answer
  • What is the value of X? (5x + 15)
    13·1 answer
  • Find the area of a triangle with a base and height of 1/3 and 1/4
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!