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
Eva8 [605]
3 years ago
12

Lf 7 + 3x = 22. then 2x = ?

Mathematics
1 answer:
Sloan [31]3 years ago
3 0

Answer:

2x = 10

Step-by-step explanation:

7 + 3x = 22

-7           -7

Subtract 7 from both sides (you are trying to get the variable alone, and to do that, you have to get every other number to 0. <em>7 - 7 = 0</em>. BUT, whatever you do, you have to do to both sides.)

3x = 15

/3    /3

Divide both sides by three to get the variable alone.

x = 5

Now, plug in the value of x to the second equation and solve.

2(5) = ? --> 10

You might be interested in
The _____ function is the most basic function in a family of functions.
grandymaker [24]

Answer:

Parent function

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Write 54 + 63 as the product of the GCF of 54 and 63 and another sum
levacccp [35]

Answer:

9*(6+7)

Step-by-step explanation:

First, we have to find the Greatest Common Factor (GCF), to do this we have to see all the factors of 54 and 63 and find the greatest factor that they have in common.

Factors of 54

1,2,3,6,9,18,27,54

Factors of 63

1,3,7,9,21,63

The GCF is 9 because is the greatest factor that is common to both numbers.

Now we have to divide 54/9 and 63/9

54/9 = 6

63/9 = 7

So now we can write the product of the GCF and another sum:

9*(6+7)

<em>We can prove this by solving both expressions:</em>

<em>54+63 = 9*(6+7)</em>

<em>117 = 9*13</em>

<em>117 = 117 </em>

<em>The results are equal so we prove it is right.</em>

8 0
3 years ago
Read 2 more answers
Hannah wants to rewrite 18+12 using the greatest common factor and the distributive property. Which expression should she write?
lyudmila [28]

Answer:

A

Step-by-step explanation:

18 + 12 = 30

A: 6 (3 + 2) = 30

Simplified 6*5 = 30

4 0
3 years ago
Select from the drop-down menus to correctly complete each statement. −20&gt;−21 −19&gt;−20 −21 is located to the of −20 on a nu
LekaFEV [45]

Answer:

  left, right

Step-by-step explanation:

If you use the < or ≤ symbol to compare the numbers, their left-right order is the same as on the number line. Here, we would write the ordering as ...

  -21 < -20 < -19

So, we see that ...

  -21 is <em>left</em> of -20 on the number line

  -19 is <em>right</em> of -20 on the number line

4 0
3 years ago
Read 2 more answers
Please help me choose correct answer
Radda [10]
You just multiply the option amounts :) 4x2x7x3=168
3 0
4 years ago
Other questions:
  • Simplify completely quantity of x squared plus 7 x minus 30 all over quantity of x plus 10. x2 + 4 x2 ? 4 x ? 3 x + 3
    13·2 answers
  • What's 61.05 minus 46.92
    15·2 answers
  • A certain pizza box holds a 14-inch diameter pizza. If the box is 2 inches high; what is its surface area?
    7·1 answer
  • What is the constant of proportionality
    10·1 answer
  • Claire invests £200 000 in a savings account for 4 years.
    11·1 answer
  • PLEASE HELP ME
    11·2 answers
  • 4:3=x:6, find the value of x please help me
    15·1 answer
  • Kevin and Randy Muise have a jar containing 82 ​coins, all of which are either quarters or nickels. The total value of the coins
    9·1 answer
  • Solve the 3x3 system shown below. Enter the values of x, y, and z.
    15·1 answer
  • The table shows the coordinates of a function.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!