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Mathematics 7 Online
OpenStudy (anonymous):

1-3c=9c+7

OpenStudy (anonymous):

9c+3c=1-7 12c=-6 c=-1/2

OpenStudy (lgbasallote):

did you get that @KamsterW ?

OpenStudy (anonymous):

Kinda I added 9c and 3c and got 12c?

OpenStudy (lgbasallote):

he wanted to isolate c so he added 3c to both sides

OpenStudy (lgbasallote):

that gave him 1 = 9c + 3c + 7 since he wanted to isolate c..he subtracted 7 from both sides so 1- 7 = 9c + 3c

OpenStudy (anonymous):

Ok then what

OpenStudy (lgbasallote):

after that was arithmetic... 1-7 is -6 9c + 3c is 12 so... -6 = 12c

OpenStudy (anonymous):

I don't get it. I got a 12..

OpenStudy (lgbasallote):

12 where?

OpenStudy (anonymous):

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