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
leva [86]
3 years ago
5

What is -2x-7=3(4x+7)

Mathematics
2 answers:
Ludmilka [50]3 years ago
4 0

Answer:

x= -2

Step-by-step explanation:

-2x-7=3(4x+7)

multiply numbers in parenthesis by 3

-2x-7=12x+21

move terms

-2x-12x=21+7

subtract -2x to -12x but since there negative the equation is addition. Also, add 21 to 7

-14x=28

divide both sides by -14

x= -2

3241004551 [841]3 years ago
3 0

Answer:

x= -2

Step-by-step explanation:

sorry dont read this

You might be interested in
What is the length of the conjugate axis? (y-2)^2/16 -(x+1)^2/144=1
aleksandr82 [10.1K]

Answer: 24

A hyperbola is the locus of a point in a plane which moves in the plane in such a way that the ratio of its distance from a fixed point in the same plane to its distance from a fixed line is always constant, which is always greater than unity.

the fixed point is called the focus and the fixed line is directrix and the ratio is the eccentricity.

The general equation for the vertical hyperbola is

            [ (y-k)^2 / a^2 ] – [ (x-h)^2 / b^2 ] = 1

The conjugate axis of the vertical hyperbola is y = k

Length of the conjugate axis  = 2b

According to the question k = 2, h = -1, a = 4, b = 12

Length of the conjugate axis = 2b = 2 * 12  = 24

Learn more about hyperbola here :

brainly.com/question/3351710

#SPJ9

7 0
1 year ago
Which statement is true regarding the sides of a triangle
yulyashka [42]
The statement that is true regarding the sides of a triangle is the last one because the top and bottom have to be identical to each other and the sides have to be identical to each other.
6 0
2 years ago
suppose there are three consecutive intergers.if two times the first is added to twice the middle, the results is 69 minus the l
belka [17]
3 consecutive means
x, x+1, x+2
OR
x, x-1, x-2

the equation based on givens and first equation is:

2(x) + 2(x+1) = 69 - (x+2)
4x + 2 = 67 - x
5x = 65
x = 13

so the largest would be x+2 or 15
3 0
3 years ago
how many gallons of a 50 antifreeze solution must be mixed with 90 gallons of 20% antifreeze to get a mixture that is 40% antifr
Tamiku [17]
Try this:
1) note that weight of pure antifreeze before mixing and after mixing is the same. So, if 'x' is weight of pure antifreeze in 50% solution, it is possible to make up equation before mixing: 0.5x+0.2*90.
2) there are 0.2*90=18 gal. of pure antifreeze in the 20% solution. If 'x' gal. is the weight of pure antifreeze in 50% sol. and 18 gal. is the weight of pure antifreeze in 20% sol., it is possible to make up an equation after mixing: 0.4(x+18).
3) using the both parts: 0.5x+0.2*90=0.4(x+18) ⇒ x=54 gal. of <u>pure</u> weight.
4) to find 50% solution of 54 gal. pure weight just 54:0.5=108 gal.
Answer: 108 gal.
3 0
3 years ago
Find the unknown measures of the indicated angles.
Sever21 [200]
The angles of a triangle always equal to 180 degrees.

Knowing this, you can solve this by this equation

Angle A + Angle B + Angle C = 180

43 + 85 + Angle C = 180

Angle C = 180 - 43 - 85
Angle C = 52

4 0
3 years ago
Other questions:
  • The perimeter of a square is 100 feet and area is 625 square feet . what is the length of each side
    13·2 answers
  • Researchers are interested in the effect of a certain nutrient on the growth rate of plant seeding. Use a hydroponics grow proce
    14·1 answer
  • Is it true that square roots can be compared and ordered by comparing and ordering the numbers underneath the radical symbol?
    6·1 answer
  • Yesterday, Sharon read 14 pages of a book. Today, she continued reading the book at the same speed. She read 10 pages in 35 minu
    10·1 answer
  • Say that you own property with a market price of $74,000. The state tax assessors have given it an assessed value of 48% of that
    5·1 answer
  • Solve for x. -ax+3b&gt;5
    9·1 answer
  • If cos 65 degree +cos 55 degree = cos θ, find θ in radians
    10·1 answer
  • ANSWER ASAP WILL MARK BRAINLIEST
    8·1 answer
  • Algebra evaluate each expression if a = -3 ,b= - 4 , and c = 5<br><br> what is 1. 5bc
    9·1 answer
  • If 2/15 is 40 then 1/15 is?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!