Homework Help: MATH

Posted by CHRIS on Sunday, December 25, 2011 at 6:48pm.

for which value of X will the fraction 7/2x-6 be undefined ?

and check this

IF three times a number decreased by 5, the result is 7. find the number.

3x-5=7
and x=4
is this right?

Math - drwls, Sunday, December 25, 2011 at 7:48pm
7/(2x-6) is undefined when the denominator is zero. That would be when x = 3

Your x=4 answer to the second question is correct.

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