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
podryga [215]
3 years ago
14

Is 3x+12-2x equivalent to x +12? Use two properties of operations to justify your answer.

Mathematics
2 answers:
aev [14]3 years ago
8 0

Answer:

Yes, x + 12

Step-by-step explanation:

Simplify the following:

3 x - 2 x + 12

Grouping like terms, 3 x - 2 x + 12 = (3 x - 2 x) + 12:

(3 x - 2 x) + 12

3 x - 2 x = x:

Answer: x + 12

Harlamova29_29 [7]3 years ago
6 0

Answer:

<em>Yes, it is.</em>

Step-by-step explanation:

3x + 12 - 2x =

Use the commutative property of addition to change the order of the addition.

= 12 + 3x - 2x

Use the distributive property of addition over multiplication in reverse (which is factoring).

= 12 + x(3 - 2)

Do the operation: 3 - 2 = 1

= 12 + x * 1

Simplify x * 1 to just x.

= 12 + x

Use the commutative property of addition.

= x + 12

There you have x + 12 from 3x + 12 - 2x by using properties and operations.

You might be interested in
How to solve 6x^2+5x-4=0
Vesna [10]
6x^2+5x-4=0\\\\6x^2+8x-3x-4\\\\2x(3x+4)-1(3x+4)=0\\\\(3x+4)(2x-1)=0\iff3x+4=0\ or\ 2x-1=0\\\\3x=-4\ or\ 2x=1\\\\\boxed{x=-\frac{4}{3}\ or\ x=\frac{1}{2}}

6 0
3 years ago
The global surface water area is 361, 132,000 square metres. Calculate the volume of water needed to cause a 3mm in sea level.
vovangra [49]

Answer:

The volume of water is 396 cubic meter.

Step-by-step explanation:

Area of water, A = 132000 square meter

Height, h = 3 mm = 0.003 m

The volume of water is given by

V = Area x height

V = 132000 x 0.003

V = 396 cubic meter.

3 0
3 years ago
Employee earned $37,000 during the year working for an employer when the maximum limit for social security was $118,500 each cal
PIT_PIT [208]

Answer:2907

Step-by-step explanation:

FICA Taxes = wages * (FICA tax rate+ Medicare tax rate)

FICA= 38,000*(.062+.0145)=2907 employee share

6 0
3 years ago
Please help, need answer ASAP!!
salantis [7]
It should be all real numbers
7 0
3 years ago
4y-5x&gt;20 how do i graph this
Romashka [77]
It is a diagonal line that intersects the y-axis at y=5 and it intersects the x-axis at x=-4. The slope of the graph is 5/4. 
3 0
3 years ago
Read 2 more answers
Other questions:
  • In a group of students, 30 played chess, 19 played volleyball, 25 played
    6·1 answer
  • You want to buy an item that costs $100. Which is the most cost-effective choice for buying the item?
    14·1 answer
  • How to find one-half of the number six
    8·1 answer
  • After traveling for 4 hours and 1800 miles, an airplane begins a steady descent. When it begins descending, its altitude (height
    8·2 answers
  • Is this right pls tell me FOR BRAINLIES RATE AND FOLLOW
    13·1 answer
  • PLS HELP The figure shown is created by joining two rectangles. Enter the area, in square inches, of the figure.
    11·2 answers
  • 11.Tell whether each situation can be represented by a negative number, 0, or a positive number. Negative Number 0 Positive Numb
    13·1 answer
  • Thao says she can find the answer to 8*90 by halving the 8 and doubling the 90 again and again until she gets down to 1*720 is s
    6·1 answer
  • Please answer use pic
    12·1 answer
  • Marcella is flying a kite in a competition. To win the competition, her kite string must have at least 162 feet released. The ki
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!