1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
VashaNatasha [74]
3 years ago
8

Seven times a number is the same as 12 more than 3 times the number. find the number

Mathematics
2 answers:
Arada [10]3 years ago
6 0
7x=12+3x
-3x. -3x
4x=12
x=3
Radda [10]3 years ago
5 0
7y = 12 + 3y , 4y = 12 , y = 3
You might be interested in
Solve this thing pls<br> <img src="https://tex.z-dn.net/?f=3%5Cleft%28q-7%5Cright%29%3D27" id="TexFormula1" title="3\left(q-7\ri
evablogger [386]

Answer:

  • Solution of equation ( q ) = <u>1</u><u>6</u>

Step-by-step explanation:

In this question we have given an equation that is <u>3 </u><u>(</u><u> </u><u>q </u><u>-</u><u> </u><u>7</u><u> </u><u>)</u><u> </u><u>=</u><u> </u><u>2</u><u>7</u><u> </u>and we have asked to solve this equation that means to find the value of <u> </u><u>q</u><u> </u><u>.</u>

<u>Solution : -</u>

\quad \: \longmapsto \:  3(q - 7) = 27

<u>Step </u><u>1</u><u> </u><u>:</u> Solving parenthesis :

\quad \: \longmapsto \:3q - 21 = 27

<u>Step </u><u>2</u><u> </u><u>:</u> Adding 21 on both sides :

\quad \: \longmapsto \:3q -  \cancel{ 21} +  \cancel{21} = 27  +  21

On further calculations we get :

\quad \: \longmapsto \:3q = 48

<u>Step </u><u>3 </u><u>:</u> Dividing by 3 from both sides :

\quad \: \longmapsto \: \frac{ \cancel{3}q}{ \cancel{3}}  =  \cancel {\frac{48}{3} }

On further calculations we get :

\quad \: \longmapsto \:   \pink{\boxed{\frak{q = 16}}}

  • <u>Therefore</u><u>,</u><u> </u><u>solution</u><u> </u><u>of </u><u>equation</u><u> </u><u>(</u><u> </u><u>q </u><u>)</u><u> </u><u>is </u><u>1</u><u>6</u><u> </u><u>.</u>

<u>Verifying</u><u> </u><u>:</u><u> </u><u>-</u>

Now we are very our answer by substituting value of q in the given equation . So ,

  • 3 ( q - 7 ) = 27

  • 3 ( 16 - 7 ) = 27

  • 3 ( 9 ) = 27

  • 27 = 27

  • L.H.S = R.H.S

  • Hence, Verified.

<u>Therefore</u><u>,</u><u> </u><u>our </u><u>solution</u><u> </u><u>is </u><u>correct</u><u> </u><u>.</u>

<h2><u>#</u><u>K</u><u>e</u><u>e</u><u>p</u><u> </u><u>Learning</u></h2>
3 0
2 years ago
Read 2 more answers
Find the quotient
Sindrei [870]

Answer:

1) 2.3

2) 4.088

3) .416

4) 12.52

5) 1012.5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Jim drank 2/3 of his water bottle and John drank 3/10 of his water bottle how much water did both the boys drink ?
Likurg_2 [28]

Answer:

29/30

Step-by-step explanation:

first, we must make sure they have the same denominator!

2/3 x 10/10 = 20/30

3/10 x 3/3  = 9/30

20/30 + 9/30 = 29/30

4 0
3 years ago
A silversmith mixed 100 g of a 40% silver alloy with 40 g of
notsponge [240]
Hey, don’t call for that link thing. It’s fake. Here’s how I solved this: x = [35(80%) + 70(25%)]/(35 + 70) = 43.3%

The answer is 43.3%
6 0
3 years ago
Please help Please help Please help Please help Please help Please help Please help Please help Please help Please help Please h
Alika [10]
X is side to side
Y is down to up
7 0
1 year ago
Read 2 more answers
Other questions:
  • The difference of two numbers, a and b, is 21. The difference of 5 times a and two times b is 18. What are the values of a and b
    13·1 answer
  • You are placing non-slip tape along the perimeter of the bottom of a semicircle-shaped doormat. How much tape will you save appl
    14·1 answer
  • What is the area of a circle with radius 5 cm
    10·2 answers
  • Christopher is 20 years younger than Ishaan. Ishaan and Christopher first met two years ago. Fourteen years ago, Ishaan was 3 ti
    7·2 answers
  • The table shows the price p, for renting for a d days from a car rental company?
    8·1 answer
  • What is the probability of the following, (for each answer, enter an exact number)
    5·1 answer
  • Move triangle ABC so it lies on top of triangle DEF, triangle GHI, and triangle JKL. How many units do you have to move triangle
    6·1 answer
  • Please help<br> I really need it
    9·2 answers
  • Middle school question.
    13·1 answer
  • Urgent algebra 2 help please
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!