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
cestrela7 [59]
3 years ago
14

What is the solution to 2x+12=5x-9

Mathematics
2 answers:
Sindrei [870]3 years ago
8 0
2x+12=5x-9\ \ \ \ |combine\ like\ terms\\\\2x-5x=-9-12\ \ \ \ \ |simplify\\\\-3x=-21\ \ \ \ \ |:-3\\\\x=7
Wittaler [7]3 years ago
4 0
So 2x+12=5x-9
you want all of the unknowns on one side and all of  the known values on the other or
subtract 2x from both sides
12=3x-9
add 9 to both sides
21=3x
divide both sides by 3
7=x
You might be interested in
In the table, what are the domain and range of the function relating the pressure and volume of an ideal gas at a constant tempe
jasenka [17]
In the table what are the donain and range of the function relating the pressure and volume of an idea
7 0
2 years ago
Anyone mind helping me solve this inequality? Step by step
dlinn [17]

By decomposing the figure in simpler shapes, we will see that the total area is:

a = 180 cm²

<h3>How to find the area of the composite figure?</h3>

Remember that the area of a rectangle of width W and length L is:

A = L*W

And the area of a triangle with base B and height H is:

A = B*H/2.

Then, the upper part can be seen as a rectangle of length of 6cm and width of 6 cm, with two triangles on the sides, such that each triangle has a base of 3cm and a height of 6cm.

So the area of that part is:

A = 6cm*6cm + 2*(3cm*6cm/2) = 54cm²

Now, the bottom triangle has a base of 12 cm, and a height of:

15cm - 6cm = 9cm

Then its area is:

A' = 12cm*9cm/2 = 54cm²

This means that the total area of the figure is:

total area = 54cm² + 54cm² = 108cm²

If you want to learn more about area:

brainly.com/question/24487155

#SPJ1

5 0
1 year ago
Round 111.11111 to the nearest ten thousandth.
Tema [17]
111.11111 its correct
5 0
3 years ago
Read 2 more answers
-8 + 5x - 2 = 20 solve
vaieri [72.5K]

Combining like terms on the left-hand side gives us 5x-10=20. Adding 10 to both sides gives 5x=30, and dividing both sides by 5 gives our answer of \boxed{x=6}.

3 0
3 years ago
Is y = -0.375x + 16.625 a linear equation?​
Ulleksa [173]

Answer:

Step-by-step explanation:

Yes as the x term is to the first power and is not raised to a larger exponent.

7 0
2 years ago
Other questions:
  • Y =3x + 5 is the equation of a straight line graph. What is its gradient?
    7·1 answer
  • I need help please help
    13·1 answer
  • You buy hammers for $30.00 a dozen and sell them for 3.50 each. What is the percent markup for the hammers?
    10·1 answer
  • D is the midpoint of AC. If AD = 2x + 6 and DC = 4x-7, what is the length of DC?
    9·1 answer
  • The ratio of the radii of two similar cylinders is 3:5. The volume of the smaller cylinder is 54pi cubic centimeters. Find the v
    14·1 answer
  • What is the answer to this equation 3/5+1/6
    8·1 answer
  • The larger of two numbers is 10 more than three times the smaller number is larger number decreased by the smaller number is 80
    6·1 answer
  • Fill in the blank
    11·2 answers
  • Find the sum.<br> 10 + 12 + 14 + ... + 80
    9·1 answer
  • Which of the following is not a function?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!