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
rodikova [14]
3 years ago
14

What is the answer of this equation ? 10x-6(2x+5)=20

Mathematics
1 answer:
Rudiy273 years ago
6 0

Answer:

Simplifying

x = -25

Step-by-step explanation:

Reorder the terms:

10x + -6(5 + 2x) = 20

10x + (5 * -6 + 2x * -6) = 20

10x + (-30 + -12x) = 20

Reorder the terms:

-30 + 10x + -12x = 20

Combine like terms: 10x + -12x = -2x

-30 + -2x = 20

Solving

-30 + -2x = 20

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '30' to each side of the equation.

-30 + 30 + -2x = 20 + 30

Combine like terms: -30 + 30 = 0

0 + -2x = 20 + 30

-2x = 20 + 30

Combine like terms: 20 + 30 = 50

-2x = 50

Divide each side by '-2'.

x = -25

You might be interested in
Solve for angle A with sides 6,10,9
OLga [1]

Answer:

c = 13.52 units.

Step-by-step explanation:

So for this, lets use the Law of Sines, which says that:

Sin A / a = Sin B / b = Sin C / c

We have everything for this except the the angle measure of angle C. This can be found by doing 180 - 80 - 33, since the total interior angle measure of a triangle always equals 180 degrees.

180 - 80 - 33 = 67 degrees

With this, we can use the angle & side of A/a as well as the angle of C to get the side of c by using the Law of Sines

Sin A / a = Sin C / c

sin 33/8 = sin 67/c

c = 8*sin67 / sin 33

c = 13.52 units.

4 0
3 years ago
Simplify the number using the imaginary unit i: (square root) -28
olasank [31]
<span>(square root) -28
=</span><span>(square root) 4*-7
=2</span><span>(square root)-7
hope this helps</span>
3 0
3 years ago
Read 2 more answers
What is 7 divided by 23
nikklg [1K]

Answer:

0.3043478

Step-by-step explanation:

...............

3 0
3 years ago
Read 2 more answers
What is the domain of this graph?
Elenna [48]
A. Whole numbers from 0 to 10

The domain is composed of all x value on the graph. Every point is on a whole number for x.
7 0
3 years ago
What is the pythagorean theorem
Molodets [167]
C in square=A in square+B in square
6 0
3 years ago
Read 2 more answers
Other questions:
  • If a and b are equally likely events and we require that the probability of their intersection be at least .98, what is p(
    13·1 answer
  • Which equation represents this line in point-slope form?
    9·1 answer
  • Ann ate 54 candies in two days. How many candies did she eat each day, if she ate 8 more candies on the first day than on the se
    13·1 answer
  • Help solving this math
    15·1 answer
  • Relative humidity (%)= actual moisture content ___________________ x 100 saturation moisture content if the actual moisture cont
    15·1 answer
  • One car has twice the mass of a second car, but only half as much kinetic energy. When both cars increase their speed by 5.5 m/s
    13·2 answers
  • Ken predicts that the average temperature will be −5°C in December. If he predicts the temperature will rise 6°C in January and
    14·1 answer
  • A restaurant serves three types of omelettes. Surveys were taken of the last two days of orders and are displayed in the table b
    9·2 answers
  • Help pls asap
    5·1 answer
  • I need help with elimination the equation is -3x + 2y= 7 and 4x + 4y= -6
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!