Vgln. eerste graad (reeks 2)

Bepaal de waarde van x. Meerdere manieren van oplossen mogelijk

\(12x-12=5-11x\)

\(\begin{align} & 12x \color{red}{-12}& = & 5 \color{red}{ -11x } \\\Leftrightarrow & 12x \color{red}{-12}\color{blue}{+12+11x } & = & 5 \color{red}{ -11x }\color{blue}{+12+11x } \\\Leftrightarrow & 12x \color{blue}{+11x } & = & 5 \color{blue}{+12} \\\Leftrightarrow &23x & = &17\\\Leftrightarrow & \color{red}{23}x & = &17\\\Leftrightarrow & \frac{\color{red}{23}x}{ \color{blue}{ 23}} & = & \frac{17}{23} \\\Leftrightarrow & \color{green}{ x = \frac{17}{23} } & & \\ & V = \left\{ \frac{17}{23} \right\} & \\\end{align}\)