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Agata [3.3K]
3 years ago
8

Show each step of your work. Solve -3x + 12 = x – 4.

Mathematics
2 answers:
kodGreya [7K]3 years ago
7 0

Answer:

x=4

Step-by-step explanation:

-3x+12-12=x-4-12

-3x=x-16

-3x-x=x-16-x

-4x=-16

-4 divided by -16

x=4

vfiekz [6]3 years ago
7 0

Answer:

Step-by-step explanation:

- 3x + 12 = x-4

+3x

12= 4x -4

+4

16 = 4x

Divided by 4

4= x

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Which expression gives the solutions -5x+2x^2=-6x?(1pt)
irina [24]
This is the concept of algebra, the solution of the given expression will be given as follows;
-5x+2x²=-6x
adding 5x on both sides we get
5x-5x+2x²=-6x+5x
2x²=-x
divide both sides by 2
(2x²)/2=-x/2
x²=-x/2
divide both sides by x
(x²)/x=-x/(2x)
x=-1/2
the answer is x=-1/2
8 0
4 years ago
Which of the following BEST describes a pyramid?
Jet001 [13]

Answer:

C

Step-by-step explanation:

Pyramids must have bases and a point off the base

3 0
3 years ago
What is the solution of quadratic system of equations ?
kobusy [5.1K]

Answer:

(- 1, 1) and (- 5, - 35)

Step-by-step explanation:

since both equations express y in terms of x, equate the right sides

x² + 15x + 15 = - x² + 3x + 5 ( subtract - x² + 3x + 5 from both sides )

2x² + 12x + 10 = 0  ( divide all terms by 2 )

x² + 6x + 5 = 0 ← in standard form

(x + 1)(x + 5) = 0 ← in factored form

equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

x + 5 = 0 ⇒ x = - 5

substitute these values into either of the 2 equations and solve for y

x = - 1 : y = (- 1)² + 15(- 1) + 15 = 1 - 15 + 15 = 1 ⇒ (- 1, 1 )

x = - 5 : y = (- 5)² + 15(- 5) + 15 = 25 - 75 + 15 = - 35 ⇒ (- 5, - 35 )

None of the given options



8 0
4 years ago
True or false - Agriculture and trade influenced the growth of civilization in ancient Egypt.
Svetlanka [38]

Answer:

The answer is True.

Step-by-step explanation:

The earliest civilizations developed between 4000 and 3000 BCE, when the rise of agriculture and trade allowed people to have surplus food and economic stability.

Hope this helps you!

7 0
3 years ago
Need help thank you mark brainliest
aliina [53]

Answer: it says independent work

Step-by-step explanation:

3 0
3 years ago
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