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need help I start with  widgets. Each day, I produce  widgets, and destroy  widgets. After three days, how many widgets am I left with, in terms of ?

 Sep 27, 2020
 #1
avatar+111127 
+1

start     9-2x

end of day one  add         +2x+1   - (3-x)

end of day two  add         +2x+1   - (3-x)

end of day two  add         +2x+1   - (3-x)

 

Add them up!

 Sep 27, 2020

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