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Mathematics 14 Online
OpenStudy (anonymous):

(2x-7)-(5x-1) got: -3x-8

jimthompson5910 (jim_thompson5910):

(2x-7)-(5x-1) 2x-7-5x+1 (2x-5x)+(-7+1) -3x-6

jimthompson5910 (jim_thompson5910):

So you're close, but -7 + 1 isn't -8, it's actually -6

OpenStudy (anonymous):

altight ill have to fix a couple of problems then

jimthompson5910 (jim_thompson5910):

I think you may have forgotten about distributing the negative completely through

jimthompson5910 (jim_thompson5910):

-(5x-1) turns into -5x+1 and NOT -5x - 1

OpenStudy (anonymous):

ok going to do it again

OpenStudy (anonymous):

so this one: (-9x^2+3x-7)+(-4x^2-x) -9x^2+3x-7-4x^2-x like this ?

OpenStudy (anonymous):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

yes keep going though

OpenStudy (anonymous):

got it incorrect: -13x^2-2x-7

jimthompson5910 (jim_thompson5910):

+3x - x +3x - 1x +2x

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