HELP

500 = -500/3*t + 200       Divide all terms by 100

 

5 = -5/3*t + 2                  subtract 5 from both sides

 

0 = -5/3*t -3                    Multiply all terms by 3

 

0 = -5t - 9                      Add 5t to both sides

 

5t = -9                          Divide both sides by 5

 

t = -9/5

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