Vgln. eerste graad (reeks 1)

Bepaal de waarde van x.

\(-3x+6=6\)

\(\begin{align} & -3x \color{red}{+6}& = &6 \\\Leftrightarrow & -3x \color{red}{+6}\color{blue}{-6} & = &6\color{blue}{-6} \\\Leftrightarrow &-3x & = &0\\\Leftrightarrow & \color{red}{-3}x & = &0\\\Leftrightarrow & \frac{\color{red}{-3}x}{ \color{blue}-3} & = & \frac{0}{-3} \\\Leftrightarrow & \color{green}{ x = 0 } & & \\ & V = \left\{ 0 \right\} & \\\end{align}\)