Ask question

Ask question

All categories

3 years ago

6

12(3-2x)=84 solve for x.

2 answers:

zimovet [89]3 years ago

8 0

12 (3-2x)=84
3-2x=84:12
3-2x=7
-2x=7-3
-2x=4
x=4:(-2)
x=-2

OlgaM077 [116]3 years ago

7 0

12(3-2x) = 84

do distributive multiplication:

12(3) + 12(-2x) = 84
36 - 24x = 84

Deduct 36 to both sides

36 - 36 - 24x = 84 - 36
-24x = 48

divide -24 to both sides

-24x / -24 = 48/-24
x = -2

To check:
12(3-2x) = 84
12(3-2(-2) = 84
12(3+4) = 84
12(7) = 84
84 = 84

You might be interested in

Graph the line with the given point and slope. the line that passes (2,-2) with slope 1/4

netineya [11]

Point-slope equation of a line:

$y - yo = m(x - xo)$
Where m is the slope (1/4) and (xo,yo)=(2,-2)

$y + 2 = \frac{1}{4} (x - 2)$
$y + 2 = \frac{1}{4} x - \frac{1}{2}$
$y = \frac{1}{4} x - \frac{5}{2}$
The y-intercept is -5/2, the graph is shown in the photo.

4 0

3 years ago

Juan went to the store to buy a plant for his mother, but forgot to ask which kind to get. Out of 30 plants, eighteen of them ar

Luba_88 [7]

Answer:

Probability [Randomly choose plant Juan's mother want] = 3 / 5

Step-by-step explanation:

Given:

Total number of plant in store = 30 plants

Number of plant kind Juan's mother want = 18

Find:

Probability [Randomly choose plant Juan's mother want]

Computation:

Probability of an event = Number of favorable outcome / Total number of outcomes

Probability [Randomly choose plant Juan's mother want] = Number of plant kind Juan's mother want / Total number of plant in store

Probability [Randomly choose plant Juan's mother want] = 18 / 30

Probability [Randomly choose plant Juan's mother want] = 3 / 5

7 0

3 years ago

angie needs to buy 156 candlesbfor a party. each package has 8 candles. how many packages should Angie buy?

andre [41]

20 packages

Step-by-step explanation:

Divide 156 by 8 and you get 19.5. Angie needs 156 candles, so you round 19.5 to 20.

6 0

2 years ago

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B9%7D" id="TexFormula1" title="\frac{1}{9}" alt="\frac{1}{9}" align="absmiddle

Jobisdone [24]

$\dfrac{1}{9} - \dfrac{5}{6}$

Set up

$\dfrac{2}{18} - \dfrac{15}{18}$

Get all fractions to a common denominator which will allow you to subtract them

$\dfrac{2 - 15}{18}$

Subtract numerators

$\boxed{- \dfrac{13}{18}}$

Simplify

4 0

3 years ago

A 15% tip on a diner Bill is 2.55 how much is the bill?

crimeas [40]

2.7? im actually not 100%sure on this one

5 0

3 years ago

Read 2 more answers