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
lozanna [386]
3 years ago
8

How do I Simplify 4a – 7b + 2ab – a + b (I need step by step cause I'm trying to learn this)

Mathematics
1 answer:
Alex3 years ago
4 0

Step-by-step explanation:

Ok. First of all, we need to follow the order of operations: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. We don't have any parentheses, exponents, or division to resolve, so you can skip those. So now you have: Multiplication, Addition, and Subtraction. We have multiplication in each term, but each term is fully simplified, so we have Addition and Subtraction left.

With that out of the way, let's go ahead and rearrange this equation so it is easier to solve. (<em>Note: we can only rearrange terms that are positive because subtraction is not commutative. But we can turn negative terms into "positive" terms by the method shown below.</em>)

4a - 7b + 2ab - a + b

4a + (-7b) + 2ab + (-a) + b (<em>Now the terms are all positive, so we can rearrange them, but they still have the same value.</em>)

4a + (-a) + 2ab + (-7b) + b

3a + 2ab + 7b

And there we go. Our answer is fully simplified. If you can understand this, you'll be able to simplify without isolating and rearranging the terms each time.

Hopefully this was helpful and not confusing.

You might be interested in
“twice the sum of a number and 6 is more than 84”
stealth61 [152]

Answer:

81

Step-by-step explanation:

2x+6=84

2x=78

81

find your own way

3 0
2 years ago
Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?
Sergeu [11.5K]
Hello!

First of all we find the slope by dividing the difference of the y values by the difference of the x values as seen below.

\frac{-3-11}{1+3} = -\frac{14}{4} = \frac{7}{2}

The slope of our line is 7/2, or 3.5
-------------------------------------------------------------
Now we will put the slope and a point on our line into slope intercept form and solve for b. We will use (-3,11).

11=3.5(-3)+b
11=10.5+b
b=0.5

Our final equation is shown below.

y=3.5x+0.5

I hope this helps!


7 0
3 years ago
Read 2 more answers
It’s 500 seconds or eight minutes greater
Citrus2011 [14]
The answer is 500 seconds it’s 5.33 minutes.
7 0
3 years ago
the temperature started at 89°f. if the temperature went up 6°f and then down 12°f, how many degrees above or below the high is
Sonja [21]
The answer is 6 degrees below the high. 
89+6=95
95-12=83
4 0
2 years ago
Find the perimeter of the figure below notice that one side is not given
Anarel [89]
4+15+11+5+7+10= 50 cm

10cm  was the missing one
5 0
3 years ago
Read 2 more answers
Other questions:
  • Howdoyouwrite<br> 36/50<br> as a percentage?
    12·1 answer
  • If you set aside $9000 at the end of each year for the next 22 years in a Roth IRA, how much will you have at your retirement 22
    9·1 answer
  • Which operation will "undo" multiplication? division multiplication subtraction addition
    11·2 answers
  • OMG PLS HELP WITH THIS IM PANICKING OMG I GOT A F IN MATH MY MOM JUST YELLED AT ME IM CRYING PLS HELP WITH THS-
    14·1 answer
  • What is the Greatest Common Factor
    8·2 answers
  • A common denominator between 2/3 and 4/5 is
    6·1 answer
  • An interior design working with a computer program decreases the radius of a circular rug by 10%. By what percent does the area
    6·1 answer
  • Evaluate the following expression for y=25 and g=5<br><br>8(y÷g)-4y÷g+9<br><br>​
    8·2 answers
  • Giving a brainlest to the right answer
    10·1 answer
  • A restaurant charges an automatic gratuity of 18% on tables with more than 6 people. A party of 8 had a bill of p. Which express
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!