SOLUTION: 7a --- 3a-5 which number cannot be used in the variable in this rational expression

Algebra.Com
Question 305997: 7a
---
3a-5 which number cannot be used in the variable in this rational expression

Answer by edjones(8007)   (Show Source): You can put this solution on YOUR website!
7a/(3a-5)
.
The denominator cannot be zero.
3a-5=0
3a=5
a=5/3
So a cannot equal 5/3
.
Ed

RELATED QUESTIONS

Which numbers cannot be used in place of the variable in the rational expression: 2y + (answered by Mathtut)
Which numbers cannot be used in place of the variable in the rational expression?... (answered by Fombitz)
which numbers cannot be used in place of the variable in the rational expression:... (answered by robertb)
Which numbers cannot be used in place of the variable in the rational expression?... (answered by solver91311)
Which numbers cannot be used in place of the variable in each rational expression? 18. (answered by jim_thompson5910)
Which numbers cannot be used in place of the variable in each rational expression? a^2... (answered by stanbon)
Which numbers cannot be used in place of the variable in each rational expression?... (answered by vleith)
Which numbers cannot be used in place of the variable in each rational expression? 2x... (answered by edjones)
I'm not sure how to work this problem. When I work it out it is the same as the initial... (answered by RAY100)