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
LUCKY_DIMON [66]
3 years ago
15

Solve the equation 14=7(2x-4) using two different methods. Show your work. Which method do you prefer? Explain. need help thanks

Mathematics
2 answers:
Jet001 [13]3 years ago
5 0

Answer:

x=3

Step-by-step explanation:

14=7(2x-4)

14/7=2x-4

2=2x-4

2x=2+4

2x=6

x=6/2

x=3

------------

14=7(2x-4)

14=14x-28

14x=14+28

14x=42

x=42/14

x=3

vodka [1.7K]3 years ago
3 0

14=7(2x-4)\\2=2x-4\\2x=6\\x=3\\\\14=7(2x-4)\\14=14x-28\\14x=42\\x=3

I prefer the first method, because I don't do unnecessary multiplication and therefore operate on smaller numbers.

You might be interested in
Why do you need fewer inches than centimeters to measure the length of the key
kirill [66]
Inches and centimeters are different units of measurement, one English, one metric.  Converting from one to the other requires use of a conversion factor.
One such factor can be derived from    1 inch = 2.54 cm.  This means that one inch is 2.54 times longer than one cm.
6 0
3 years ago
H^-16/h^x=1/h^24 can someone help me please
Basile [38]

Given:

Consider the equation is

\dfrac{h^{16}}{h^x}=\dfrac{1}{h^{24}}

To find:

The value of x.

Solution:

We have,

\dfrac{h^{-16}}{h^x}=\dfrac{1}{h^{24}}

Using properties of exponents, we get

h^{-16-x}=h^{-24}       [\because \dfrac{a^m}{a^n}=a^{m-n},a^{-n}=\dfrac{1}{a^n}]

On comparing both sides, we get

-16-x=-24

Add 16 on both sides.

-x=-24+16

-x=-8

Multiply both sides by -1.

x=8

Therefore, the value of x is 8.

5 0
2 years ago
Select all the expressions equvilants to 1.5 x 4 + 3 x 2 - 7
Step2247 [10]
The answer is C. 6+3 x (-5)
7 0
2 years ago
Solve this system of equations: y = x2 – 3x + 12 y = –2x + 14 4. Substitute the values of x, –1 and 2, into either original equa
SOVA2 [1]

One solution is (–1, <span> ⇒ 16</span>).

The second solution (2, <span> ⇒ 10</span>). your welcome 

4 0
3 years ago
Read 2 more answers
What is 7/10 + 7/10 =
Nonamiya [84]

The correct answer is 1.4 or 1 4/10

I did this by turning 7/10 into a decimal which is 0.7.

Now I just add 0.7 + 0.7.

For that equation i got 1.4

This would equal 1 4/10

3 0
2 years ago
Read 2 more answers
Other questions:
  • Best Deal 2
    11·1 answer
  • Someone can explain to me how I have to do this? please
    9·2 answers
  • Please answer this correctly
    11·1 answer
  • The measure of central angle XYZ is 1.25 radians.
    15·2 answers
  • In a survey of 600 students 80 percent said they liked pop music.How many students liked pop music
    11·1 answer
  • Please help !! And I'll give brainlist
    11·2 answers
  • Factoring out the GCF of the polynomial 2x^6+2x^5 will give
    5·1 answer
  • A nursery owner buys 8 panes of glass to fix some damage to his greenhouse. The 8 panes cost
    11·1 answer
  • Help me 1-6 with an explanation for a brainliest.
    7·1 answer
  • I have no idea what I'm doing :^
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!