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Mathematics 22 Online
OpenStudy (anonymous):

2x-3=2(x-9)

OpenStudy (anonymous):

2x-3=2x-18 no solution

OpenStudy (anonymous):

no solution

OpenStudy (anonymous):

it's obvious from cancelling 2x in both sides!

OpenStudy (anonymous):

really?

OpenStudy (anonymous):

without any expanding

OpenStudy (anonymous):

15

OpenStudy (anonymous):

looking will show you that,

OpenStudy (anonymous):

well you would have to expand to see that you would have to subtract 2x from both sides

OpenStudy (anonymous):

15 = 0x, hurr durr

OpenStudy (anonymous):

no need just look

OpenStudy (anonymous):

or else someone could say " how, there isnt a 2x on the right side

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