All categories

3 years ago

Solve the equation

Mathematics

1 answer:

UNO [17]3 years ago

4 0

Answer:

x = 10

Step-by-step explanation:

2x/3 + 1 = 7x/15 + 3

(times everything in the equation by 3 to get rid of the first fraction)

2x + 3 = 21x/15 + 9

(times everything in the equation by 15 to get rid of the second fraction)

30x+ 45 = 21x + 135

(subtract 21x from 30x; subtract 45 from 135)

9x = 90

(divide 90 by 9)

x = 10

<h2>Another solution:</h2>

2x/3 + 1 = 7x/15 + 3

(find the LCM of 3 and 15 = 15)

(multiply everything in the equation by 15, then simplify)

10x + 15 = 7x + 45

(subtract 7x from 10x; subtract 15 from 45)

3x = 30

(divide 30 by 3)

x = 10

You might be interested in

Order these numbers from least to greatest. 3.3661, 3.5, 3.36, 3.036

anyanavicka [17]

Answer:

3.036, 3.36, 3.3661 , 3.5

Step-by-step explanation:

Look at the first 2 numbers

3.3661, 3.5, 3.36, 3.036

We can order them as 3.0 , 3.3 , 3.3 . 3.5

So 3.036 is first one

Now we have 2 of the 3.3's

One is 3.3661 and the other one is 3.3600

Because if you add a number to the end it will always be a zero and it wont change the answer

So 3.36 is second and 3.3661 is third one

3.5 is bigger than 3.3

So 3.5 is last

5 0

1 year ago

Read 2 more answers

The middle school is 2.72 km from marshes House and 1.52 km from Ryan’s house how much further does Martha live from the middle

Alex_Xolod [135]

1.20kilometers farther away from Ryan’s house

6 0

3 years ago

A square has a perimeter of 40cm what is the length of each side

docker41 [41]

Answer:

length of each side : 10 cm

Step-by-step explanation:

all sides of squares are equal

thus, 4 sides = 40 cm

1 side = 40/10 cm

1 side = 10 cm

5 0

2 years ago

Read 2 more answers

Solve |x – 4| + 6 = 17.

const2013 [10]

Answer:

$\mathrm{C)\:}x=15,\:-7$

Step-by-step explanation:

For $|a-b|=c$ , there are two possible cases:

$\begin{cases}a-b=c\\a-b=-c\\\end{cases}$

Solving for both cases, we get:

$\begin{cases}x-4+6=17, \:x+2=17, \: \fbox{$x=15$}\\-(x-4)+6=17,\: -x+10=17, \: -x=7, \:, \fbox{$x=-7$}\\\end{cases}$

6 0

3 years ago

U= a-k-b solve for a

irina [24]

Answer:

a = b + k + u

Step-by-step explanation:

hope this helps

3 0

3 years ago

Solve the equation ​

Solve the equation