All categories

3 years ago

-2(x-2)=14 what is x?

Mathematics

2 answers:

ryzh [129]3 years ago

7 0

X is equal to 5 because 2x+4=14

raketka [301]3 years ago

5 0

Answer:

-5

Step-by-step explanation:

solve the perantheses first, -2x+4=14, subtract 4 to both sides. -2x=10 and divide by -2, x=-5

You might be interested in

Find the missing length indicated. Hi can someone please explain how I would solve this question?

atroni [7]

How do we do the link

5 0

2 years ago

Solve the following system of equations. Write each of your answers as a fraction reduced to lowest terms. In other words, write

morpeh [17]

Answer:

x = 57/28

y = -95/84

z = 97/168

Step-by-step explanation:

Use the application in the next link: https://www.zweigmedia.com/RealWorld/tutorialsf1/scriptpivotold.html

Start with the expanded array:

$\left[\begin{array}{cccc}1&5&8&1\\3&2&2&5\\-2&-7&2&5\\\end{array}\right]$

then using the tool provided, make row operations until you find the solution:

r2 = r2-3r1

$\left[\begin{array}{cccc}1&5&8&1\\0&-13&-22&2\\-2&-7&2&5\\\end{array}\right]$

r3 = r3+2r1

$\left[\begin{array}{cccc}1&5&8&1\\0&-13&-22&2\\0&3&18&7\\\end{array}\right]$

r2 = r2*(-1/13)

$\left[\begin{array}{cccc}1&5&8&1\\0&1&22/13&-2/13\\0&3&18&7\\\end{array}\right]$

r1 = r1- r2*5

$\left[\begin{array}{cccc}1&0&-6/13&23/13\\0&1&22/13&-2/13\\0&3&18&7\\\end{array}\right]$

r3 = r3+ r2*-3

$\left[\begin{array}{cccc}1&0&-6/13&23/13\\0&1&22/13&-2/13\\0&0&168/13&97/13\\\end{array}\right]$

r3 = r3*13/168

$\left[\begin{array}{cccc}1&0&-6/13&23/13\\0&1&22/13&-2/13\\0&0&1&97/168\\\end{array}\right]$

r2 = r2- r3*22/13

$\left[\begin{array}{cccc}1&0&-6/13&23/13\\0&1&0&-95/84\\0&0&1&97/168\\\end{array}\right]$

r2 = r2+ r3*6/13

$\left[\begin{array}{cccc}1&0&0&57/28\\0&1&0&-95/84\\0&0&1&97/168\\\end{array}\right]$

Here you have a reduced array an therefore the answers to each variable are on each row:

$\left[\begin{array}{c}x\\y\\z\end{array}\right]$

8 0

3 years ago

= 28.16

frosja888 [35]

Answer:

20 m

Step-by-step explanation:

4(3+2) = 20

8 0

2 years ago

Simplified or solved for x ????

Leya [2.2K]

$\dfrac{16 \pm \sqrt{-32} }{2}$

$\dfrac{16 \pm \sqrt{-16 \times 2} }{2}$

$\dfrac{16 \pm 4i\sqrt{2} }{2}$

$8 \pm 2i \sqrt{2}$

5 0

3 years ago

What is 1 mile to 800 feet?

zalisa [80]

1 mile is 6.6 times 800 feet.

4 0

2 years ago