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
Nadya [2.5K]
3 years ago
15

10x-7x=12 how to solve this

Mathematics
2 answers:
djyliett [7]3 years ago
8 0

Answer:

x=4

Step-by-step explanation:

10x-7x=12

3x=12

divide both sides by 3

x=4

nekit [7.7K]3 years ago
5 0

Answer: x = 4

Step-by-step explanation: To solve this equation, we can first combine our like terms on the left side of the equation which are the x's.

10x - 7x = 3x so we now have the equation 3x = 12.

Now to solve for <em>x</em>, we want to get <em>x</em> by itself on the left side of the equation. Since <em>x</em> is being multiplied by 3, to get <em>x</em> by itself, we need to divide by 3 on the left side of the equation. Since we divided by 3 on the left side, we must also divide by 3 on the right side.

On the left side, notice that the 4's cancel out so we're simply left with <em>x</em>. On the right side we have 12 divided by 3 which is 4 so x = 4.

Finally, remember to check your answer by substituting a 4 back into the original equation.

So we have 10(4) - 7(4) = 12 or 40 - 28 = 12 or 12 = 12.

Since this a true statement, we know our answer is correct.

Remember to show all your work when solving equations.

You might be interested in
HELP ASAP WILL GIVE BRAINLIEST
Ivahew [28]

Answer:

c

Step-by-step explanation:

bu step explanatiob by 3

6 0
2 years ago
Read 2 more answers
Need help, someone explain
JulsSmile [24]

Answer: X = 19

Step-by-step explanation: it is a three equation system, the problem is you don't have the third equation, so we have to infer it, and it's: PRQ + QRS = 180.

then we do as follows:

3 0
3 years ago
How to write y= 2x-7 in function notation
luda_lava [24]
I believe it would be  <span>f(x)=2x-7</span>
4 0
3 years ago
Read 2 more answers
To the nearest tenth, find the volume of a sphere with a diameter of 36 cm. Use 3.14
lesya [120]

Answer:

The volume of the sphere is 24416.6 cm³

Step-by-step explanation:

To calculate the volume of a sphere we have to use the following formula:

v = volume

r = radius

v = ⁴⁄₃πr³.

To solve this formula we first have to have all the data, as we see we need to calculate the radius, which is calculated by dividing the diameter by 2

r = d/2

r = 36cm/2

r = 18cm

Now that we have all the data we can solve the formula

v = ⁴⁄₃πr³.

v = ⁴⁄₃ * 3.14 * (18cm)³

v = 24416.64 cm³

Round to the nearest tenth

v = 24416.6 cm³

5 0
3 years ago
Find the 8th term of the geometric sequence: 1/3, -1, 3
olga55 [171]

Step-by-step explanation:

a= 1/3

common ratio = -3

the 8th term is given by,

a {r}^{7}  =  \frac{1}{3}  \times  {( - 3)}^{7}

=  - 729

7 0
3 years ago
Other questions:
  • Is transformation an isometry ?
    11·1 answer
  • Select all pairs of alternate EXTERIOR angles. Assume the lines are parallel.
    14·2 answers
  • For all real numbers a and b, 2a • b = a2 + b2<br><br> True Or False ! Explain
    5·2 answers
  • The girl earns six dollars per hour at her job she also earn a bonus of $30 this week to find the total amount you earned this w
    11·1 answer
  • Select the equation of the line that passes through the point (5, 7) and is perpendicular to the line x = 4.
    12·1 answer
  • Is 12 a divisor of 48?
    7·1 answer
  • Local environmentalists want to test if there is a difference in the pH of three different streams (called A, B, and C) feeding
    14·1 answer
  • Use long division to find a repeated decimal equivalency for the fraction. Upload all of your work as part of your final answer.
    9·2 answers
  • -6=1/4x-5 solve for x<br><img src="https://tex.z-dn.net/?f=%20-%206%20%3D%201%20%5Cfrac%7B1%7D%7B4%7D%20x%20-%205" id="TexFormul
    9·1 answer
  • Here are 2 polygons. Select all sequences of translations, rotations, and reflections below that would take polygon Pto polygon
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!