SOLUTION: solve 18 = 1-3a

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Question 706670: solve 18 = 1-3a

Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
18 = 1-3a
3a=-18+1
3a=-17
a=-17/3 ans.
Proof:
18=1-3(-17/3)
18=1+17
18=18