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
andriy [413]
3 years ago
13

Please help me out :((

Mathematics
1 answer:
olga_2 [115]3 years ago
6 0

Answer:

1) 5*x + 6 = 2 + 3*x

5*x - 3*x = 2 - 6

(5 - 3)*x = -4

2*x = - 4

x = -4/2 = -2

x = -2

We have only one solution.

2) 2*(6 - 2*y) = -1*(4*y - 9)

12 - 4*y = -4*y + 9

12 - 9 = -4*y + 4*y = 0

3 = 0

This is absurd, so this equation has no solution.

3) 2*z - 6 = 2*(z + 2) - 10

2*z - 6 = 2*z + 4 - 10

2*z - 6 = 2*z - 6

Here we have the exact same thing on both sides of the equation, then we have infinite solutions, this happens because z can take any value, and the equation will be true always.

4) We want to have no solutions, so we need to end with something like:

1 = 6

so, we start with:

5*x + 1 = 5*x + A

We want to find the value of A.

First, we can subtract 5*x in both sides, so we get:

1 = A

Now we just need to take A different than 1, for example, if A  = 2, then:

1 = 2

In this case the equation has no solutions, then we have:

5*x + 1 = 5*x + 2

5) We want to have one solution:

3*x - 3 = A*x + 11

We want to end with something like x = k

Let's solve the equation for x:

3*x - 3 = A*x + 11

3*x - A*x = 11 + 3

(3 - A)*x = 14

if we take A = 2, then:

(3 - 2)*x = 14

x = 14

So this equation has only one solution, the equation is:

3*x - 3 = 2*x + 11

6) We want to have infinitely many solutions, then we need to have the same thing on both sides, then we need to have an equation like:

8*x - 7 = 8*x - 7

You might be interested in
Someone please answer ASAP
stepladder [879]
I don’t know if this is what you’re looking for but I got 103040000
6 0
3 years ago
Read 2 more answers
I need help with number 8 and 9! :) Thanks!
Arturiano [62]
8 = D
9 = A 
i think that 9 might be C as well but i just went for my gut feeling 

5 0
3 years ago
Which of the following terms best describes 1.47
EastWind [94]
I think it’s a mixed decimal because it’s a number consisting of a integer plus a behind the decimal formation.

Hopefully this is correct and helpful
6 0
3 years ago
Read 2 more answers
What is the degree of rotation for the following figure
drek231 [11]

Answer:

all of the angles are obtuse so 120 is your awnser

8 0
2 years ago
What does the product of any whole-number factor multiplied by 100 always have ? Explain
Alexxx [7]
It has two extra zeroes because any number times one is always itself, then you would add two extra zeroes to the end. For example: 100 x 360= 36000, or 36x100=3600.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone help me with geometry please
    8·2 answers
  • After purchasing a cell phone online, Mary attempts to sell the phone for $325. If this was a markup of 24%, how much did Mary o
    11·2 answers
  • What is the equation of the line?
    11·1 answer
  • What part of 72 is 2?
    15·2 answers
  • Which describes the relationship between
    5·1 answer
  • Please help with this
    7·1 answer
  • Need help on this question thank you!
    8·1 answer
  • Please help………………………..
    8·1 answer
  • |x + 5| = -3<br> How do I do this ?
    13·1 answer
  • 8+ 6+ 4+ 2+ 2 ++ 6 8 -8 -6 -4 2 ܠܛ -4+ -6+ -8+ What is the equation of the line?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!