Exercício Resolvido de Inequações
d)
\( -3x+1\leqslant 0 \)
\[
\begin{gathered}
-3x+1\leqslant 0\\
\qquad\qquad\quad -3x\leqslant -1 \qquad (\times -1)\\
3x\geqslant 1\\
x\geqslant \frac{1}{3}
\end{gathered}
\]
\[ \bbox[#FFCCCC,10px]
{V=\left[\phantom{{\frac{}{}}}\right.\;\frac{1}{3};-\infty\;\left[\phantom{{\frac{}{}}}\right.}
\]