Vgln. eerste graad (reeks 2)

Bepaal de waarde van x. Meerdere manieren van oplossen mogelijk

\(-5x-11=4+6x\)

\(\begin{align} & -5x \color{red}{-11}& = & 4 \color{red}{ +6x } \\\Leftrightarrow & -5x \color{red}{-11}\color{blue}{+11-6x } & = & 4 \color{red}{ +6x }\color{blue}{+11-6x } \\\Leftrightarrow & -5x \color{blue}{-6x } & = & 4 \color{blue}{+11} \\\Leftrightarrow &-11x & = &15\\\Leftrightarrow & \color{red}{-11}x & = &15\\\Leftrightarrow & \frac{\color{red}{-11}x}{ \color{blue}{ -11}} & = & \frac{15}{-11} \\\Leftrightarrow & \color{green}{ x = \frac{-15}{11} } & & \\ & V = \left\{ \frac{-15}{11} \right\} & \\\end{align}\)