# Algebra

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Find all numbers for which the rational expression is undefined?

3/9w+7

Can someone help me figure this out?

• Algebra -

Is all of the 9w +7 supposed to be in the denominator, as in 3/(9w+7) ?

The expression is undefined when the denominator is zero.

• Algebra -

yes the 9w+7 is in the denominator. so the answer is zero?

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