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Mathematics 10 Online
OpenStudy (anonymous):

simplify -3x+9 over -3

OpenStudy (anonymous):

x+3

OpenStudy (anonymous):

x − 3 x + 9 −x − 3 −3x − 3 thats all the choices

OpenStudy (anonymous):

@mitchelsewbaran

jimthompson5910 (jim_thompson5910):

-3 times what = -3x+9

OpenStudy (anonymous):

the question is -3x+9 OVER -3

jimthompson5910 (jim_thompson5910):

I know, I'm trying to get you to factor -3x+9

jimthompson5910 (jim_thompson5910):

What do you get when you factor out -3 from -3x+9?

OpenStudy (anonymous):

its gonna be x-3

jimthompson5910 (jim_thompson5910):

perfect, -3x+9 = -3(x-3)

jimthompson5910 (jim_thompson5910):

notice how the -3 terms cancel

OpenStudy (anonymous):

so would 5x-10 over 5 be x-5? @jim_thompson5910

jimthompson5910 (jim_thompson5910):

(5x-10)/5 (5(x-2))/5 x-2 So (5x-10)/5 simplifies to x-2

OpenStudy (anonymous):

Do you understand how to simplify 1/4(g-16) ?

OpenStudy (anonymous):

would it simplify as 1/4 g+4 ?

jimthompson5910 (jim_thompson5910):

think of 1/4 as "1 divided by 4", so you can think of 1/4(g-16) as g-16 ----- 4

jimthompson5910 (jim_thompson5910):

or you can distribute through to get 1/4g - 4

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