Vgln. eerste graad (reeks 2)

Bepaal de waarde van x. Meerdere manieren van oplossen mogelijk

\(7x+2=2-10x\)

\(\begin{align} & 7x \color{red}{+2}& = & 2 \color{red}{ -10x } \\\Leftrightarrow & 7x \color{red}{+2}\color{blue}{-2+10x } & = & 2 \color{red}{ -10x }\color{blue}{-2+10x } \\\Leftrightarrow & 7x \color{blue}{+10x } & = & 2 \color{blue}{-2} \\\Leftrightarrow &17x & = &0\\\Leftrightarrow & \color{red}{17}x & = &0\\\Leftrightarrow & \frac{\color{red}{17}x}{ \color{blue}{ 17}} & = & \frac{0}{17} \\\Leftrightarrow & \color{green}{ x = 0 } & & \\ & V = \left\{ 0 \right\} & \\\end{align}\)