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OpenStudy (anonymous):
Multiply across
4/5 * -48
-192/5
OpenStudy (anonymous):
4/5 times f +60=0
OpenStudy (anonymous):
4/5 * f+60?
OpenStudy (anonymous):
yea
OpenStudy (anonymous):
4/5*f+60
4/5f=-60
f=-60*5/4
f=-300/4
f=-75
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OpenStudy (anonymous):
thank you, what about this one?
79\[\left( m-1 \right)\]=-63
OpenStudy (anonymous):
79(m-1)=-63
distribute the 79 through
79m-79=-63
79m=13
m=13/79
OpenStudy (anonymous):
Are you understanding how to do this better?
OpenStudy (anonymous):
Yeah, that is what iI have been doing, but I have to check it by pluging in the number for 'm' and that is what i am stuck on.
OpenStudy (anonymous):
oh ok, it does make it harder when it is a fraction, but in this we want the left side to =the right side. That is how we know we got the right answer.
79(13/79-1)=-63
79(13/79-79/79)=-63
79(-63/79)=-63
79's cancel
-63=63
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OpenStudy (anonymous):
1=79/79, you need that to understand. I found teh common denominator