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
fiasKO [112]
2 years ago
15

Whats the answer to 3x + 4 = 7x + 8

Mathematics
2 answers:
Yakvenalex [24]2 years ago
7 0

Answer:

-1

Step-by-step explanation:

Add '-7x' to each side of the equation.

4 + 3x + -7x = 8 + 7x + -7x

Combine like terms: 3x + -7x = -4x

4 + -4x = 8 + 7x + -7x

Combine like terms: 7x + -7x = 0

4 + -4x = 8 + 0

4 + -4x = 8

Add '-4' to each side of the equation.

4 + -4 + -4x = 8 + -4

Combine like terms: 4 + -4 = 0

0 + -4x = 8 + -4

-4x = 8 + -4

Combine like terms: 8 + -4 = 4

-4x = 4

Divide each side by '-4'.

x = -1

Simplifying

x = -1

Nostrana [21]2 years ago
4 0

Answer:

0

Step-by-step explanation:

3x + 4 =7x + 8

group like terms:

3x - 7x = 8 - 4

step 2:

-4x = 4

step 3:

-4x/-4 = 4/-4

therefore -4 will cancel -4 to remain the x :

x = 4/-4

which is equal as 0:

x =0

You might be interested in
A road sign gives drivers information about traffic on busy highways. One sign shows 15 miles in 20 minutes. What is this speed
SIZIF [17.4K]

Answer: Speed in miles per hour is 45 mph.

Step-by-step explanation:

Since we have given that

Distance covered = 15 miles

Time taken to cover the above mentioned distance = 20 minutes

We need to calculate the speed in miles per hour ,

As we know the formula for " Speed " i.e.

Speed=\frac{Distance}{Time}

Now, we will put the value of distance and time in the above formula:

Speed=\frac{15}{20}\times 60\\\\Speed=15\times 3\\\\Speed=45\ mph

Hence, Speed in miles per hour is 45 mph.

8 0
3 years ago
Read 2 more answers
Write an algebraic expression for the phrase the sum of g and 3
Paraphin [41]
The sum of g and 3. 

The sum of two values is added together. 

g+3

You would add g to 3 since it is their sum the statement is asking for.

I hope this helps!
~kaikers
3 0
3 years ago
Is this correct now?
Makovka662 [10]
I would say no it’s not correct, the point is not in the correct place
8 0
2 years ago
What is the best description of the transformation shown?What is the best description of the transformation shown?
professor190 [17]

Answer:

The transformation is reflection

3 0
3 years ago
Read 2 more answers
Jacinta, an internet website designer, works a 38 hour week and earns $3115.35 every fortnight. Calculate her earnings:
sveticcg [70]

Step-by-step explanation:

total working duration = 2 weeks

Working duration in hours = 38× 2= 76 hours

a) per year

24*3115.35 = $74768

b) 3115.35/2

$1557.675

c)

3115.35/76

$40.99

6 0
2 years ago
Read 2 more answers
Other questions:
  • How to find the area of a semi-circle PLEASE HELP ME
    9·1 answer
  • What is 11.25 as a fraction?
    13·1 answer
  • I need help with this question (Trigonometry)
    11·1 answer
  • The sum of two consecutive integers is 9. Find the numbers.
    15·1 answer
  • iris charges $50 for her consulting services plus $60 for each hour she works. on one job, iris charged $470. for how many hours
    5·2 answers
  • Is 12 a prime or composite number? And why?.
    5·2 answers
  • A sales analyst listed the probabilities of profits and losses in dollars for a certain company. Find the mean for the probabili
    6·2 answers
  • A kangaroo hops 2 kilometers in 3 minutes. At this rate, how long does it take the kangaroo to travel 5 kilometers?
    13·2 answers
  • Please help, i really need it
    12·2 answers
  • Find the rule.<br><br><br><br>Rule:​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!