Question

Which of the following equations has an infinite number of solutions?
- 3x - 3 = -4x
- 2y + 4 - y = 16
- 7x + 5 = 4x + 5 + 3x
- 6y - 2 = 2(y - 1)

Answer 1

@angel12310

Answer 2

There are no easy answers to your question. For polynomial equations in a single variable there are some rules, including a firm maximum number of solutions, but in general it is more difficult. Some are easy: For example:

sin(x) = 1 where the domain is all real numbers has an infinite number of solutions, while sin(x) = 1.5 has none, because the range of the sine function is [-1, 1].

For multiple variables there are often an infinite number of solutions:

x^2 + y^2 = 25 for example, can be graphed as a circle of radius 5 centered at the origin. There are an infinite number of pairs (x, y) that fall on the circle.

x^2 + y^2 = -25 will have no real solutions, because the sum of the squares of two real numbers is never negative. On the other hand if complex valuess are allowed for x and y, we are back to infinite solutions. So the answer also depends upon the universe from which solutions may be taken.

The list of possibilities is endless.

Answer 3

@undeadknight26
@severus4ever

Answer 4

@emmigrace222

Answer 5

hmmmm

Answer 6

thinking xD

Answer 7

wanna hear a secret?

Answer 8

shure

Answer 9

i have no clue sorry and suure

Answer 10

I can fly and am to lazy to answer this question sorry...

Answer 11

thats fine emmi rthis isn't even my question its a closed question but i do need to know

Answer 12

lol

Answer 13

Wait...are all those negative or just have a sign?

Answer 14

half and half

Answer 15

-_- that answers nothing... lol jk let me see what i can do...

Answer 16

ok

Answer 17

this guy knows what hes doing hes part of the after life

Answer 18

XD lol nebula totally gets me :P

Answer 19

LOLZ ok brb

Answer 20

ok nvm xD

Answer 21

Honestly i don;t see any of these that have infinite solutions...they all have one solution or i would say it either put C or find out if there is a Answer is not listed(etc.)...I could be wrong of course...

Answer 22

D: i feel bad

Answer 23

i think its D

Answer 24

im fanning you knight xD

Answer 25

Lol thx emmi :D

Answer 26

yea u should

Answer 27

wish i could give you all a medal here...but this is what we gonna do...emmi u fan nebula, nebula u fan me....plan works XD

Answer 28

he could use a fan he must be hot from that fire hours hes riding

Answer 29

i am a fan u help me not have my parents mad at me for a pore grade

Answer 30

:O
Omg
*hugs nubula* thats almost the nicest thing any one has ever said to me...

Answer 31

now i hug u 5 weeks ago