0.9 will equal to \(\frac{9}{10}\)
Anyhow ! Lets get to the steps!
\(\frac{9}{10} - r \leq ?\)
\(\frac{9}{10}\)
Now "r" will become a negative
\(\frac{9}{10} - - r \leq ?\)
\(\frac{-r(10)}{10}\)
\(\frac{10(r)+9}{10} \leq 0\)
We have to multiply from each of your sides by the number 10
You can even divide by the number 10 aswell
Back to the steps
\(r+ \frac{9}{10} \leq ?\)
Subtract from this fraction \(\frac{9}{10}\) to your sides
This would be inequality \(r + .900 \leq ?\)
\(r \ \textless \ -\frac{9}{10}\) ← this should most likely be your answer
\(Now, Good Luck\)