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
Tema [17]
3 years ago
14

5-6(a+2)=7+a What is a

Mathematics
2 answers:
iogann1982 [59]3 years ago
5 0
Remmeber you can do anything to an equaiton as long as you do it to btoh sides
5-6(a+2)=7+a
distribute
5-6a-12=7+a
add like terms
-6a-7=7+a
add 6a both sides
-7=7+7a
minus 7 both sides
-14=7a
divide by 7
-2=a
a=-2
morpeh [17]3 years ago
4 0
The first step here would be to distribute the parenthesis to the -6.

5 - 6a - 12 = 7 + a

Next, combine all like terms. This means that the constants will combine, thus making the next step easier.

- 6a - 7 = 7 + a

Now, subtract the negative seven from the other side of the parenthesis. When I say add the negative, I mean that the sign (-) will flip, turning into a positive.

- 6a = 14 + a

Now do the same with the a, except this time the a will be subtracted from the other side due to it's positive sign being flipped into a negative.

- 7a = 14

Now you divide both sides by - 7. Almost done!!!

- 7a / - 7 = 14 / -7

Finally the equation simplifies to:

a= -2
You might be interested in
Find the area of a trapezoid please help im so lost
Murrr4er [49]
Here, trapezoid is composed of two triangles, and one rectangle.
So, Area of rectangle = 4 * 7 = 28 cm²
Area of a triangle = 1/2 * 3 * 7 = 21/2 = 10.5 cm²

Area of Trapezoid = area of rectangle + 2(area of triangle)
 = 28 + 2(10.5)
 = 28 + 21 = 49

In short, Your Answer would be 49 cm²

Hope this helps!
5 0
3 years ago
Please answer this first to answer CORRECTLY, gets brainliest.
Komok [63]
I think it would be 78.54
4 0
2 years ago
Read 2 more answers
F(x)=-3x-2 find f(3)
TiliK225 [7]

Answer:

f(3) = -11

Step-by-step explanation:

f(x) = -3x-2

let x=3 and replace it in the above equation

f(3) = -3(3) -2

f(3) = -9 -2

f(3) = -11


4 0
3 years ago
Hellp ging brainiest if good answer see picture
MariettaO [177]

Answer:

5/7-1/3=8/21

So is 8/21

7 0
3 years ago
a rental car agency charges a flat fee of $110 plus $46 per day to rent a certain car. another agency charges a fee of $70 plus
insens350 [35]
First make and equation. Since you want to find the number of the day where both charge the same total amount, you would make the equation:
let x= the number of days
110+46(x)=70+54(x)
Solve:
110-70+46(x)=70-70+54(x)
40+46(x)=54(x)
40+46(x)-46(x)=54(x)-46(x)
40=8(x)
40/8=8x/8
5=x
Therefore your answer would be 5 days
8 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone please help me with math
    15·1 answer
  • F(x) = x^2 +3 ; g(x) = x - 7
    11·1 answer
  • What is the lcm of 60
    11·2 answers
  • The goal is to make them equal both sides. So there's 7 lines in total, you can move only one line from either side to the other
    10·1 answer
  • 10% of what number is 300?
    10·1 answer
  • Plz help I need by tonight
    10·1 answer
  • 1. t+7=5 step by step
    6·1 answer
  • A skier is trying to decide whether or not to buy a season ski pass. A daily pass costs ​$77. A season ski pass costs ​$450. The
    7·1 answer
  • A rectangular prism is 4 meters long, 5 meters wide and has a hight of 7 meters what is it's volume?
    10·1 answer
  • Only the a) part please!!!!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!