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
NNADVOKAT [17]
3 years ago
14

Why is subtracting an expression similar to distributing -1? Explain.

Mathematics
1 answer:
jeka57 [31]3 years ago
5 0
Take the expression 2<em>x </em><em>- </em><em />(<em>x</em> - 3).  We know we can multiply everything by 1 and not change it; we know that if a variable does not have a coefficient with it, we can write a 1 beside it.  That means we can write our expression as
2<em>x</em> - 1(<em>x</em> - 3).  This helps us see the distributive property applies here:
2<em /><em>x</em> - 1<em>x</em> - 1(-3)
2<em>x</em> - 1<em>x</em> - -3
2<em>x</em> - 1<em>x</em> + 3
1<em>x</em> + 3 = <em>x</em> + 3<em />
You might be interested in
Find the volume of the following
Alex_Xolod [135]

Answer: 3200

Step-by-step explanation:

4 0
3 years ago
What is m∠4 + m∠5 + m∠6? <br><br> 180 <br> 270 <br> 300 <br> 360
zhenek [66]

Answer:360°

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Derive a formula to find the perimeter of an isosceles triangle in which one of the equal
Scorpion4ik [409]

Given :

Length of one of the equal sides of an isosceles triangle = 3x+2

Then, length of the other equal side will also be = 3x+2

Length of the unequal side of this isosceles triangle = 14

Formula for finding the perimeter of an isosceles triangle :

= \tt  side + side + side

A formula for finding the perimeter of this isosceles triangle :

= \tt3x + 2 + 3x + 2 + 14

Bringing all like terms together we get :

=\tt 3x + 3x + 2 + 2 + 14

= \tt6x + 4 + 14

\color{plum}\tt  = 6x + 18

Thus, the formula = 6x+18

Therefore, a formula to find the perimeter of this isosceles triangle = <u>6x+18</u>

7 0
3 years ago
What is the answer too 2y-3=-5
bogdanovich [222]

2 − 3 = −5

First we need to Add 3 to both sides of the equation:

2 − 3 + 3 = −5 + 3

Then we simplify:

2 = −5 + 3

 2 = −2

Now we divide both sides of the equation by the same term:

2 / 2 = −2 / 2

Final answer: = −1

I hope this helps!

8 0
3 years ago
Read 2 more answers
You live 3 1/2 miles away from school. In the morning, you walk 1/4 mile directly toward school to take the bus. You walk home s
Tresset [83]
6 and a half miles......
6 0
3 years ago
Other questions:
  • If X+1&lt;4 and Y-2&lt;-1, then what is one possible value of x+y?
    5·1 answer
  • 200 tickets were sold to a concert. Floor seats cost $32 and stadium seats cost $20. Ticket sales totaled $5440. Find how many o
    12·1 answer
  • Describe how the graph of y= x2 can be transformed to the graph of the given equation. y = (x - 13)2 + 6
    5·2 answers
  • From a survey, a reporter determined that the true estimate for the proportion of citizens who plan to sign a petition is betwee
    10·2 answers
  • Marge cut 16 pieces of tape. Each piece is 3/8in long HOW MUCH TAPE DID SHE USE???????? meow :3
    10·2 answers
  • The lenght of the square-shaped field edge is 240 meters. Calculatr the field area in hectares​
    12·1 answer
  • The student council at Greenwood High School is selling T-shirts for $20 apiece. Their costs are $5 per shirt, plus $45 for supp
    13·1 answer
  • Find the slope of the line without graphing using the 2 points below.
    10·1 answer
  • What is PR?<br><br> A. 1 7/8 cm<br> B. 10 cm<br> C. 13 1/3 cm<br> D. 15 cm
    13·2 answers
  • Diagonals of rectangle are:
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!