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
EastWind [94]
3 years ago
11

Respuesta para 8×-2=-9+7×

Mathematics
1 answer:
den301095 [7]3 years ago
8 0
The answer is x=-7
8x-7x-2=-9
8x-7x=-9+2
-7
You might be interested in
What is the prime factorization of the number 45 
Hunter-Best [27]
45|3
15|3
5|5
1

45=3^2\cdot5
4 0
2 years ago
Which line is parallel to the line that passes through the points (1,7) and (-3, 4)?
mojhsa [17]

Answer:

Step-by-step explanation:

i hope you get this helpfull to get answer of this question take the qr code and scan it then you will get the answer

4 0
2 years ago
1. What is the value of the y variable in the solution to the following system of equations?
ollegr [7]

Part 1)

we have

3x-6y=3 ------> equation A

7x-5y=-11 ------> equation B

Multiply by -7 the equation A

-7(3x-6y)=-7*3

-21x+42y=-21 ------> equation C

Multiply by 3 the equation B

3*(7x-5y)=-11*3

21x-15y=-33 -------> equation D

Adds equation C and equation D

-21x+42y=-21 \\21x-15y=-33\\---------- \\ 42y-15y=-21-33\\27y=-54 \\ y=-2

therefore

<u>the answer Part 1) is the option A </u>

y=-2

Part 2)

we have

3x+y=6

y=-3x+6 ------> equation A

6x+2y=8

Simplify Divide by 2 both sides

3x+y=4

y=-3x+4 ------> equation B

the lines A and B are parallel lines, because the slope m is equal

so

The system has no solution

therefore

<u>the answer Part 2) is the option D</u>

There is no x value as there is no solution to the system.

Part 3)

we have

4x+2y=6 ------> equation A

x-y=3

y=x-3  ------> equation B

substitute equation B in equation A

4x+2[x-3]=6

6x-6=6

6x=12

x=2

therefore

<u>the answer part 3) is the option D</u>

x=2

Part 4)

Let

x---------> The number of one-step equations

y---------> The number of two-step equations

we know that

x+y=1,120

x=1,120-y -------> equation A

3x-2y=1,300 ------> equation B

substitute equation A in equation B

3[1,120-y]-2y=1,300

3,360-5y=1,300

5y=3,360-1,300

5y=2,060

y=412

therefore

<u>the answer part 4) is  the option D</u>

y=412

8 0
2 years ago
Read 2 more answers
Can someone please help me. This is an equation for either an arithmetic or geometric sequence.
djyliett [7]
A6 = -8
a15= -62

There are (15 - 6) terms in between, therefore 9 terms in between.
-8 to -62 ... there is a difference of 54
54 ÷ 9 = 6
Therefore it gets -6 each term.
a6 = -8, a7= -14, a8 = -20 ......




4 0
3 years ago
Read 2 more answers
Bryan decided to ride his bike along a new route home from school to avoid some construction. Before leaving school, he estimate
docker41 [41]
<h3>Answer:   20 minutes.</h3>

Work Shown:

Estimate = 1.25*(actual time)

Estimate = 1.25*(16)

Estimate = 20

Bryan estimated it would take 20 minutes.

Note: The multiplier 1.25 represents an increase of 25%

8 0
2 years ago
Other questions:
  • How do I solve this
    9·2 answers
  • A distribution has the five-number summary shown below. What is the range of this distribution? 21, 32, 49, 67, 75
    5·2 answers
  • (-12, -1) and (-3,-4)
    7·1 answer
  • If x2=7 what is a value of x?<br><br> A.√7<br> B.3.5<br> C.√49<br> D.14
    9·1 answer
  • 4(10x+6)--10(9x+9)<br>please show your work​
    8·1 answer
  • Item 2
    5·1 answer
  • Please help me.....
    11·1 answer
  • The original price of the TV was marked down by $75 to a sale price of $325. What was the original price of the TV
    6·1 answer
  • On the number line, which point is closest to <br> A. A<br> B. B <br> C. C <br> D. D
    11·2 answers
  • Wei biked 91 meters. Paul biked 65 meters. How much farther did Wei bike than Paul? Enter the answer in the box. meters​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!