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
Katena32 [7]
3 years ago
13

What value of x makes the following equation true? 15+3x=3(2−2x)

Mathematics
1 answer:
Alinara [238K]3 years ago
5 0

Answer:

\boxed {x = -1}

Step-by-step explanation:

Solve for the value of x:

15 + 3x = 3(2 - 2x)

-Use <u>Distributive Property</u>:

15 + 3x = 3(2 - 2x)

15 + 3x = 6 - 6x

-Take 6x and add it to 3x:

15 + 3x + 6x = 6 + 6x - 6x

15 + 9x = 6

-Subtract both sides by 15:

15 - 15 + 9x = 6 - 15

9x = -9

-Divide both sides by 9:

\frac{9x}{9} = \frac{-9}{9}

\boxed {x = -1}

Therefore, the value of x is -1.

You might be interested in
Which pair of angles are supplementary angles
fenix001 [56]
Supplementary angles add up to 180 degrees, so look for two angles by each other that add up to 180 degrees.

Hope this Helps!
4 0
4 years ago
Read 2 more answers
Find the solutions for a triangle with a = 16, c =12, and B = 63º.
maks197457 [2]

Answer:

b. A = 71.6°; C = 45.40°; b =15.0

Step-by-step explanation:

The missing values can be found with the help of the Law of Cosine and properties of triangles:

Side b (Law of Cosine)

b = \sqrt{a^{2}+c^{2}-2\cdot a \cdot c \cdot \cos B}

b = \sqrt{16^{2}+12^{2}-2\cdot (16)\cdot (12) \cdot \cos 63^{\circ}}

b \approx 15.022

Angle A (Law of Cosine)

\cos A = -\frac{a^{2} - b^{2}-c^{2}}{2\cdot b \cdot c}

\cos A = - \frac{16^{2}-15.022^{2}-12^{2}}{2\cdot (15.022)\cdot (12)}

\cos A = 0.315

A= \cos^{-1} 0.315

A \approx 71.639^{\circ}

Angle C (Sum of internal angles in triangles)

C = 180^{\circ} - 63^{\circ} - 71.639^{\circ}

C = 45.361^{\circ}

Hence, the right answer is B.

6 0
3 years ago
HELP PLEASE!<br><br> 15 POINTS
Goshia [24]

Answer:

Its 58

Step-by-step explanation:

2+2+2+2+2+4+4+4+6+10+10=58 but the closest number to it is 56

8 0
2 years ago
Read 2 more answers
If you take a number, times by 3 then add 5. You get the same as if you took the number, times by 7 then subtract 8. What is the
lana [24]
3x+5=7x-8
4x=13
x=13/4
the answer is 13/4
8 0
3 years ago
Isabel graphed the following system of equations.
igor_vitrenko [27]

Answer:


Step-by-step explanation:

Simplified the following system of equations into a linear equation.

Graphed (plot the points) the linear equation onto the graph.

To get the solution (2,-2) (x,y)she went positive 2 to the right and -2 down.


4 0
3 years ago
Other questions:
  • What 3 ratios are equivalent to 20:36
    9·2 answers
  • 69.5 is What precent of 85?
    5·2 answers
  • Select all the values that cannot be probabilities A.) 1 B.) square root of 2 C.) 0 D.) 0.04 E.) -0.54 F.) 3/5 G.) 5/3 H.) 1.29
    10·1 answer
  • How many different types of cross sections of a cone are possible?. A. 3. B. 5. C. 6. D. 10
    12·1 answer
  • Select the correct expression for the phrase below.
    9·1 answer
  • A sphere has a radius of 6. Using 3.14 for pi, what is the volume?
    5·2 answers
  • <img src="https://tex.z-dn.net/?f=%20-%207%20%2B%20%20%5Cfrac%7Bf%7D%7B2%7D%20%3D%20%20-%201" id="TexFormula1" title=" - 7 + \f
    15·1 answer
  • Please help i will give brainliest this is really important it looks like a lot but its only one question
    11·2 answers
  • Find the 11th term of the arithmetic sequence an=<br> 24 – 7(n - 2)<br> 2115
    11·1 answer
  • Can y’all help me on question 3?!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!