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
Ymorist [56]
3 years ago
11

Solve 3a – 8= 5a + 12 Show your work. (please)

Mathematics
1 answer:
amid [387]3 years ago
5 0

Answer:

<em>a = - 10</em>

Step-by-step explanation:

<em>3a – 8 = 5a + 12</em>

<em>3a – 8 + 8 = 5a + 12 + 8</em>

<em>3a = 5a + 20</em>

<em>3a - 5a = 5a + 20 - 5a</em>

<em>- 2a = 20</em>

<em />\dfrac{-2a}{-2}=\dfrac{20}{-2}<em />

<em>a = - 10</em>

You might be interested in
What is the answer for 3x=1.2+1.2+1.2
Savatey [412]
The answer is 1.2 b/c you have to solve x by simplifying both sides of the equation and isolating the variable.
5 0
3 years ago
It don’t make no sense
Soloha48 [4]
Yes it does not, i want my free points
6 0
3 years ago
Use a for your variable. 13 less than 4 times a number is greater than 75 what's the answer ​
sammy [17]

Answer:

Let n = the number

4n - 9 = n

3n = 9

n = 3

6 0
3 years ago
Read 2 more answers
1 Solve the compound inequality 4x&gt;-16 or 6x &lt;-48<br>​
Yuliya22 [10]

Answer:

Step-by-step explanation:

4x > -16 reduces to x > -4:  All numbers greater than x = -4 (shaded area to the right of -4).

6x < -48 reduces to x < -8:  All numbers to the left of -8 (shaded area to the left of -8).

Solution:  (-infinity, -4) ∪ (-8, infinity)

The number line between -8 and -4 is not part of the solution set (is not shaded or darkened)

Draw an open circle at -8 and extend an arrow to the left of this circle.  Then draw an open circle at -4 and extend an arrow to the right of this circle.

5 0
3 years ago
Tickets for a concert cost $2 each for children and $5 each for adults.A group of 30 people consisting of children and adults pa
noname [10]
Let,
the no. of adults be "x"
then, the no. of childern = total people - total adults 
                                   = (30 - x)
Now,
According to the quesiton,
2 (30 - x) + 5x = 87
60 - 2x + 5x = 87
60 + 3x = 87
3x = 87 - 60
3x = 27
x = 27 / 3
x = 9

So, there were 9 adults in the group

3 0
3 years ago
Other questions:
  • Mikela earned $65.25 for 9 hours of work. This week see earned $101.50 for 14 hours. Which equation represents the relationship
    6·1 answer
  • Rebecca and Megan are shopping at a store that sells jewelry, scarves, and purses. The cost of all the items at the store includ
    6·2 answers
  • What is 6x – 8 = 4 written as a system?
    5·2 answers
  • What is the volume of a hemisphere that has a diameter of 12.6 cm, to the nearest tenth of a cubic centimeter?
    10·1 answer
  • X3+y3+z3=k, with k being all the numbers from one to 100
    5·1 answer
  • State the restrictions on the domain.
    13·1 answer
  • I NEED HELP PLS. I NEED PASS MY FINALS
    5·1 answer
  • Solve for X and round to the nearest tenth
    5·1 answer
  • #1 A buoy, bobbing up and down in the water as waves pass it, moves from its highest point to its lowest point and back to its h
    7·1 answer
  • Anne visits her mother every 10 days. Alma visits every 5 days and Amy, the youngest visits every 4 days. If they meet today, ho
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!