Vgln. eerste graad (reeks 2)

Bepaal de waarde van x. Meerdere manieren van oplossen mogelijk

\(-12x-1=-10+5x\)

\(\begin{align} & -12x \color{red}{-1}& = & -10 \color{red}{ +5x } \\\Leftrightarrow & -12x \color{red}{-1}\color{blue}{+1-5x } & = & -10 \color{red}{ +5x }\color{blue}{+1-5x } \\\Leftrightarrow & -12x \color{blue}{-5x } & = & -10 \color{blue}{+1} \\\Leftrightarrow &-17x & = &-9\\\Leftrightarrow & \color{red}{-17}x & = &-9\\\Leftrightarrow & \frac{\color{red}{-17}x}{ \color{blue}{ -17}} & = & \frac{-9}{-17} \\\Leftrightarrow & \color{green}{ x = \frac{9}{17} } & & \\ & V = \left\{ \frac{9}{17} \right\} & \\\end{align}\)