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
Sonbull [250]
3 years ago
12

-10+5=7x-4how to i explain this step by step​

Mathematics
2 answers:
olasank [31]3 years ago
8 0

Answer:

5/7 x 4 = 2.8571 in decimal form.

o-na [289]3 years ago
6 0

Answer:

x = -1/7

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS =

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

& is the order of operation.

First simplify the expression to the left: -10 + 5 = 5 - 10 = -5

-5 = 7x - 4

Next, isolate the variable, x. Do the opposite of PEMDAS. Add 4 to both sides:

-5 (+4) = 7x - 4 (+4)

-5 + 4 = 7x

-1 = 7x

Divide 7 from both sides:

(-1)/7 = (7x)/7

-1/7 = x

x = -1/7

~

You might be interested in
Can someone help me with this surface area plz plz thanks
Lunna [17]
Just multiply all of them and if you aren’t sure just search up how to find serfsce area
4 0
3 years ago
E is the midpoint of DF, DE= 73 – 3, and EF = 4.: +3.
Damm [24]

Answer:

i don't really understand what you are asking me

Step-by-step explanation:

4 0
3 years ago
Svana wants to solve the equation x - 1.0675 = 3x - 4145.
AysviL [449]

Answer: D

Step-by-step explanation:

Given that Svana wants to solve the equation 1/2x - 1.0675 = 3x - 4145.

This equation is a system of equations which can be solved by using simultaneous equation methods.

But if she uses a graphing program to graph the equations y = 1/2x - 1.0675 and y = 3x - 4.145

The solution of 1/2x - 1.0675 = 3x - 4.145. Will be the point of intersection of the two equation.

Trace the point of intersection to the x - axis and also to the y - axis.

The solution to the system of equations is ( 1.231, - 0.452 )

3 0
3 years ago
Read 2 more answers
When looking at a decimal number (ex. 6.349821477...) what are some of the characteristics that will help you identify if the nu
quester [9]

Answer:

To determine whether a decimal is rational or not, you need to know that...

Irrational numbers don't end and have no pattern whereas rational numbers are the complete opposite. Rational numbers end and have a repeating pattern.

Step-by-step explanation:

Here are examples of irrational numbers:

0.9384903204..... , π , √2

Examples of rational numbers:

0.777777... (is rational because it has a repeating pattern of 7) , √49

Hope this helps :)

5 0
2 years ago
Rewrite 20 = 8x + 4r
3241004551 [841]

Answer:

Step-by-step explanation:

20 = 8x + 4r can be rewritten in multiple ways.

1.  Reduce the coefficients:  5 = 2x + r

or

2.  Solve for r:  r = 5 - 2x

or

                                 5 - r

3.  Solve for x:  x = -----------

                                    2

4 0
3 years ago
Other questions:
  • to find the average number of points per game a player scores use the formula points per game = total points/games. find the num
    10·1 answer
  • Is this right? I’m unsure if I’m doing this correctly. Thanks
    15·2 answers
  • Please can someone help me out? ​
    7·2 answers
  • Multiply.
    7·1 answer
  • What are the solutions to the quadratic equation xº - 36 = 0?
    6·2 answers
  • Last week Alexander was paod $53 for 7 hoirs of work.How much money does Alexander's job per hour
    8·1 answer
  • Max points and brainliest
    8·2 answers
  • ROBERT bought 2 packages of cookies for $6.00. How much would 3 packages of cookies cost?
    6·1 answer
  • Question 7 of 15 Which is an equation of the line through (0,0) and (5,-2)? O A. y = 3 B. y = ja c. y = - 30 D. y=- Y​
    7·1 answer
  • See question in image and show workings​<br><br>Note : 1 nautical mile = 1.86km
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!