Question

what values of x make inequality 1 + 5x < -9

Answer 1

$\begin{gathered} 1+5x<-9 \\ \text{Subtract 1 from both sides} \\ 1+5x-1<-9-1 \\ 5x<-10 \end{gathered}$

Dividing both sides by 5, we have

$\begin{gathered} \frac{5x}{5}<\frac{-10}{5} \\ x<-2 \end{gathered}$