SOLUTION: How do you write one third of a number decreased by 5 is -12

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Question 535247: How do you write one third of a number decreased by 5 is -12
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
1/3x-5=-12
1/3x=-12+5
1/3x=-7
x=-7/(1/3)
x=-7*3/1
x=-21