MATH
posted by CHRIS .
for which value of X will the fraction 7/2x6 be undefined ?
and check this
IF three times a number decreased by 5, the result is 7. find the number.
3x5=7
and x=4
is this right?

7/(2x6) is undefined when the denominator is zero. That would be when x = 3
Your x=4 answer to the second question is correct.