3 years ago

What is the solution to the equation 2x+4 -12=20?

Mathematics

1 answer:

Dafna11 [192]3 years ago

4 0

Answer:

x=1

Step-by-step explanation:

if you plug in 1 for x, you do the math, 1+4=5 and you then do 2 to the power of 5 and you get 32. 32-12=20 and 20=20

You might be interested in

Which expression is equivalent to -6(3x-2/3)

Fiesta28 [93]

Answer:

Solution given:

-6(3x-⅔)

distribute it

-18x+6*⅔

-18x+4 is a required answer.

3 0

2 years ago

Help please show your work

Lelechka [254]

Honestly just use a calculator

8 0

2 years ago

:) y = (3 - x)(x + 2)

valentina_108 [34]

Answer:

-x² + x + 6

Step-by-step explanation:

Hey there!

To solve this, you have to use foil...

( 3 - x ) ( x + 2 )

3 ( x + 2 ) = 3x + 6

-x ( x + 2 ) = -x² - 2x

3x + 6 - 2x - x²

-x² + x + 6

Hope this helps :)

8 0

3 years ago

What is the slope of the line 6x+10y=8

joja [24]

First, get it into slope-intercept:

y = -3/5x + 4/5

The slope is -3/5

4 0

3 years ago

Read 2 more answers

William is thinking of a number n, and he wants his sister to guess the number. His first clue is that five less than two times

kati45 [8]

Answer:

See explanation

Step-by-step explanation:

William is thinking of a number n.

Then

two times his number = 2n

five less than two times his number = 2n - 5

The result is between negative three and fifteen, so

$-3\le 2n-5\le 15$

Solve this compound inequality. First, add 5:

$-3+5\le 2n-5+5\le 15+5\\ \\2\le 2n\le 20$

Divide it by 2:

$1\le n\le 10$

William's number is between 1 and 10

6 0

3 years ago