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
Marat540 [252]
4 years ago
8

Solve the equation for x 3x+9x = 6x + 42

Mathematics
1 answer:
podryga [215]4 years ago
3 0

= 3x + 9x = 6x + 42

= 3x + 9x - 6x = 42 ( transposing +6x from LHS to RHS changes +6x to -6x )

= 12x - 6x = 42

= 6x = 42

= x = 42 ÷ 6 ( transposing ×6 from LHS to RHS changes ×6 to ÷6 )

= x = 7

Let us check whether we have found out the correct value of x or not by placing 7 in the place of x :

= ( 3 × 7 ) + ( 9 × 7 ) = 6 × 7 + 42

= 21 + 63 = 42 + 42

= 84 = 84

= LHS = RHS

Hence proved we have derived the correct value of x .

Therefore , the value of x = 7 .

You might be interested in
A 2 liter drink costs $0.15 per deciliter. How much will the drink cost?
miv72 [106K]
The drink costs $3.00
7 0
3 years ago
Read 2 more answers
How do i write 11 5/8 as an improper fraction
FinnZ [79.3K]
11 5/8 as a improper fraction 

1) Simplify Fraction 
⇒ Multiply denominator with whole number
8 x 11 = 88

⇒ Answer of multiplication and add the numerator 
88 + 5 = 93 

93/8 is improper Fraction. 


8 0
3 years ago
Read 2 more answers
Which of the following would be a good reason to place your money into a savings account? a. You can purchase stocks with a savi
mart [117]

Answer: B. a savings account earns interest

Step-by-step explanation: Money loses value over time as the rate of inflation increases. In this scenario, when you have some money to spare, the ideal is to seek some kind of investment that earns interest.

Saving is one such option. The money in savings earns interest and is highly liquid, meaning it can be used at any time. In addition, saving is a very...

8 0
3 years ago
You rearrange your bedroom. Tell whether each move is an example of
mash [69]

Answer:

translation,reflection,

Step-by-step explanation:

because you move thing in different direction

4 0
3 years ago
Which of the following is the ratio of 5 cm to 10 km​
pshichka [43]

Answer:

1/200000

Step-by-step explanation:

first 10 km equals to 1000000cm

so 5/1000000cm

equals to 1/200000

3 0
2 years ago
Other questions:
  • Nikolai can spend up to 7  hours this weekend performing chores around his parents’ veterinary practice. They pay him $3  for ev
    12·1 answer
  • Find the 6th term of this sequence:
    8·1 answer
  • . In a study about the relationship between the age of a person and the preference for digital vs analog watches, which of the f
    8·1 answer
  • ...yea i just need help (:
    5·2 answers
  • Find the sum. <br> 8 + -1 + -5<br><br> A. 2<br> B. 14<br> C. -2<br> D. 16
    12·2 answers
  • What is the coefficient of the third term in the binomial expansion of (a + b)6? 1 15 20 90
    11·2 answers
  • Juan deposited $450 in an account that earned 7.5% simple interest.
    5·2 answers
  • HIII can some one please HELP ME !!!!
    12·1 answer
  • Help pls<br><br> I need the slope of the line 1 and 2
    7·2 answers
  • 15. Which three lengths could be the lengths of the sides of a triangle?​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!