SOLUTION: Find all numbers for which the rational expression is undefined. 1/(3y+7)

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Question 577993: Find all numbers for which the rational expression is undefined. 1/(3y+7)
Answer by dfrazzetto(283) About Me  (Show Source):
You can put this solution on YOUR website!

Undefined when the denominator is zero:
3y+7=0
3y=-7
y=-7/3

CHECK:
1/(3y+7) = 1/(3(-7/3)+7) = 1/(-7+7) = 1/0 undefined √