Question

What is the solution to the rational equation 4/3 +3/x+5 = 21/3x+15 ?

a. x = –8
b. x = –2
c. x = 2
d. x = 8

I keep doing this and then I get stuck... please help!

Answer 1

\[4/3+3/(x+5)=21/(3x+15)\]
Is the question this?

Then:
\[4/3+3/(x+5)=7/(x+5)\]
\[4/3=4/(x+5)\]
\[x+5=3\]
\[x=-2\]

But, is the question that?

Answer 2

yea i got that too, after now... thanks so b...