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
yaroslaw [1]
3 years ago
6

-18 + 2a = 2(3a + 1)

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
3 0

Answer:

a = -5

Step-by-step explanation:

Given

-18 + 2a = 2(3a + 1)

Expand the bracket on the right

-18 + 2a = 2 x 3a + 2 x 1

-18 + 2a = 6a + 2

Add 18 to both sides

-18 + 18 + 2a = 6a + 2 + 18

2a = 6a + 20

Subtract 6a from both sides

2a - 6a = 6a - 6a + 20

-4a = 20

Divide both sides by -4

-4a/-4 = 20/-4

a = -5

You might be interested in
Need help answering these questions please.
Kisachek [45]
$12.50 because you would divide 50 and 4
3 0
3 years ago
If f left parenthesis x right parenthesis equals x squared minus 3 x plus 5 , then f left parenthesis 4 right parenthesis equals
lord [1]

Answer:

f(4) = 9

Step-by-step explanation:

f left parenthesis x right parenthesis equals x squared minus 3 x plus 5

f(x) = x² - 3x + 5

f left parenthesis 4 right parenthesis equals

f(4) =

f(x) = x² - 3x + 5

When x = 4

f(4) = 4² - 3(4) + 5

= 16 - 12 + 5

= 9

f(4) = 9

6 0
3 years ago
at the bake sale connie bought 4 chocolate cookies kevin bought 4 brownies and luis bought 6 sugar cookies in simplest form what
ch4aika [34]
3/7 is the correct awnser as u can see because connie has 4 choclate cookies and kevien bought 4 brownies and luis bought 6 sugar cookies and in the simplest form the fraction would be 3/7.
4 0
3 years ago
Which of the following shows the reflection?
AysviL [449]

iii shows the reflection

5 0
3 years ago
Read 2 more answers
The Nile River is 4160 miles long. The Amazon River
Artemon [7]

Answer:

9615

Step-by-step explanation: I hope it right

4 0
3 years ago
Other questions:
  • In a computer game, when choosing a character there are 5 choices for hair style, 3 choices for eye color, and 7 choices for out
    6·1 answer
  • In the after school Dena, Shawn, and Amanda knit scarfs that are the same size with yellow, white, and blue yarn. Denas scarf is
    8·1 answer
  • 42.5% of what is 25.16
    10·2 answers
  • Jared buys 3 pounds of chicken at $3.15 per pound and 1 pound of broccoli at $1.40 per pound. How much will it cost to make dinn
    11·1 answer
  • Factor 10n^2 - 37n-36<br>​
    9·1 answer
  • PLEASE HELP!!!!Ned wrote the following statement:
    6·2 answers
  • :(<br><br><br><br> help.... :( please :(
    10·1 answer
  • Raffia went shopping for new furniture he bought a couch for $750 and a mattress for 950 dollars. When he came home he had $350
    5·2 answers
  • The perimeter of a square is 16 cm. Find the length of its diagonal.​
    6·2 answers
  • For each gym membership sold, the gym keeps $42 and the employee who sold it gets $8. What is the commission the employee earned
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!