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Mathematics 13 Online
OpenStudy (anonymous):

solve : 2x-3=4x-5

OpenStudy (lgbasallote):

so where are you confused here?

OpenStudy (anonymous):

from beginning

OpenStudy (lgbasallote):

okay so you have 2x - 3 = 4x - 5 what do you think is the first step?

OpenStudy (anonymous):

dont know

OpenStudy (lgbasallote):

hint: put the x on one side only

OpenStudy (anonymous):

ok

OpenStudy (lgbasallote):

how can you bring 2x from the left to the right?

OpenStudy (anonymous):

dont know just tell me how to solve step by step

OpenStudy (lgbasallote):

hint: subtract 2x from both sides..that will make the 2x on the left side become 0 correct?

OpenStudy (anonymous):

dono

OpenStudy (lgbasallote):

2x -2x = 0 right?

OpenStudy (lgbasallote):

since you subtract 2x on the left side you subtract 2x on the right side too 2x - 2x - 3 = 4x - 2x - 5 0 - 3 = 4x - 2x - 5 so what's 4x - 2x?

OpenStudy (anonymous):

u r wrong

OpenStudy (lgbasallote):

how so?

OpenStudy (lgbasallote):

2x - 2x is not 0?

OpenStudy (anonymous):

lgba is wrong.. Ha ha ha ha..

OpenStudy (anonymous):

yes

OpenStudy (lgbasallote):

so what's 2x - 2x then?

OpenStudy (anonymous):

2x - 2x is not 0? yes... Great..

OpenStudy (anonymous):

x=1

OpenStudy (anonymous):

2-2 is how much?

OpenStudy (lgbasallote):

that's the answer later on..i haven't gotten to that part yet @shivraj don't be excited lol where did you get that anyway?

OpenStudy (anonymous):

0

OpenStudy (anonymous):

the what is the problem in 2x - 2x??

OpenStudy (anonymous):

ya right answer

OpenStudy (anonymous):

thnks

OpenStudy (lgbasallote):

like i was saying... 2x - 2x - 3 = 4x - 2x - 5 0 - 3 = 4x - 2x - 5 so what's 4x - 2x?

OpenStudy (anonymous):

More you can do to understand better, take x common from 2x - 2x : x(2-2) = x(0) = 0

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

What is 4x - 2x?? And it is not ok it has some value..

OpenStudy (anonymous):

2

OpenStudy (anonymous):

Simply 2??

OpenStudy (lgbasallote):

arent you forgetting something?

OpenStudy (lgbasallote):

you're close though ;)

OpenStudy (lgbasallote):

4 - 2 = 2 so what's 4x - 2x?

OpenStudy (anonymous):

Similarly take x common: x(4-2). Now tell..

OpenStudy (anonymous):

x=2

OpenStudy (lgbasallote):

no..not x = 2 it's x(2) <---this can also be read as...?

OpenStudy (anonymous):

Great... (4 - 2)x = ??

OpenStudy (anonymous):

2

OpenStudy (lgbasallote):

you're forgetting something..

OpenStudy (lgbasallote):

4 - 2 = 2 so what's 4x - 2x??

OpenStudy (lgbasallote):

notice what's chagning...

OpenStudy (anonymous):

(4 - 2) multiplied by x = ???

OpenStudy (lgbasallote):

let's try this... 4 - 2 = 2 4 apples - 2 apples = 2 apples 4 mangoes - 2 mangoes = 2 mangoes 4x - 2x = ...?

OpenStudy (lgbasallote):

do you get it @shivraj ??

OpenStudy (lgbasallote):

hmm he/she closed it..

OpenStudy (anonymous):

Not willing to learn..

OpenStudy (lgbasallote):

indeed...i believe our hints were pretty clear...i see no reason why he/she would have quit

OpenStudy (anonymous):

He has not any faith on himself..

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