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Mathematics 21 Online
kyaunie:

−6x + 7x

mxddi3:

ok forget the x for a second. what is -6+7?

kyaunie:

1

mxddi3:

yeah so just add an x to the 1

kyaunie:

ohh ok

mxddi3:

it can also be written as just x instead of 1x

kyaunie:

ok got it

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