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
Sladkaya [172]
3 years ago
8

Solve for x: 4(x + 2) = 3(x − 2)A) −2B)−4C) −10D) −14

Mathematics
1 answer:
BARSIC [14]3 years ago
6 0

4(x+2)=3(x-2)

Multiply the first bracket by 4

Multiply the second bracket by 3

4x+8=3x-6

Move 3x to the left hand side, whenever moving a number with a letter the sign changes ( positive 3x to negative 3x)

4x-3x+8=3x-3x-6

x+8=-6

Move positive 8 to the right hand side

x+8-8=-6-8

x=-14

Check answer by using substitution method

Use x=-14 into both of the equations

4(-14+2)=3(-14-2)

-56+8=-42-6

-48=-48

Answer is -14- D)

You might be interested in
What is the product?<br> 3x[-6 -14 -11 -9]
suter [353]

Answer:120

Step-by-step explanation:

calculate the sum of the negetive numbers 3x-40

=120

8 0
2 years ago
What is 7539 increased by 3200
Tanya [424]
Subtract thats how you get it
5 0
3 years ago
Read 2 more answers
Of the 28 students in class, about 65% are wearing sneakers. How many students are not wearing sneakers? Round to the nearest wh
BigorU [14]

Answer:

10

Step-by-step explanation:

Based on the given conditions, formulate: \(28 \times ( 1 - 65\% )\)

Calculate the sum or difference:\(28 \times 0.35\)

Calculate the product or quotient:\(9.8\)

Find the closest integer: 10

Answer: 10

7 0
2 years ago
You have 6L feet of fence to make a rectangular vegetable garden alongside the wall of your house, where L is a positive constan
nika2105 [10]

Answer:

A(max) = (9/2)*L² ft²

Dimensions:

x = 3*L feet

y  = (3/2)*L   ft

Step-by-step explanation:

Let call  "x"  and  " y " sides of the rectangle. The side x is parallel to the wall of the house then

Area of the rectangle is  

A(r) = x*y

And total length of fence available is 6*L f , and we will use the wall as one x side then, perimeter of the rectangle which is 2x  +  2y   becomes x + 2*y

Then

6*L  =  x + 2* y    ⇒ y  = ( 6*L - x ) /2

And the area as function of x is

A(x)  =   x* ( 6*L - x )/2

A(x)  = ( 6*L*x  - x² ) /2

Taking derivatives on both sides of the equation we get:

A´(x)  =  1/2 ( 6*L - 2*x )

A´(x)  =  0      ⇒      1/2(  6*L  - 2*x ) = 0

6*L - 2*x  = 0

-2*x  = - 6*L

x  =  3*L feet

And

y  = ( 6*L - x ) /2   ⇒  y  = ( 6*L - 3*L )/ 2

y = ( 3/2)*L feet

And area maximum is:

A(max)  =  3*L * 3/2*L

A(max)  = (9/2)*L² f²

4 0
2 years ago
Read 2 more answers
Scott opened a savings account with $5000 and was paid simple interest at an annual rate of 3%. When Scott closed the account, h
goblinko [34]

Answer: The account has been open for 3 years.

Step-by-step explanation:

yes

3 0
2 years ago
Other questions:
  • If f(x) = -3x + 6 and f(x)=18<br> then what is the value of x?
    15·1 answer
  • 8(y+4)=7y+38 asap pls
    5·1 answer
  • I need help i will mark you the brainyist what is 12+44-7+55
    13·2 answers
  • Determine which justification best fits step 3 for the following proof
    5·2 answers
  • The graph shows the following system of inequalities: 6x + 3y &lt; 45 x &gt; 4 According to the graph, the solutions that satisf
    6·1 answer
  • tanya has a dog leash that is 2 yards long she shortens the leash by 1 and 1 half feet what is the length of the shortened leash
    13·2 answers
  • What is .54 repeating as a fraction
    15·2 answers
  • Which of these is a simplified form of the equation 10y + 2 = 19 + 3y + 2y? (5 points)
    7·1 answer
  • Which is the graph of y=-x-3?<br> Graph B<br> Graph C<br> Graph A
    7·1 answer
  • Apple Green paint is made by mixing
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!