Bepaal de waarde van x. Meerdere manieren van oplossen mogelijk
\(-7x-5=4+15x\)
\(\begin{align} & -7x \color{red}{-5}& = & 4 \color{red}{ +15x } \\\Leftrightarrow & -7x \color{red}{-5}\color{blue}{+5-15x }
& = & 4 \color{red}{ +15x }\color{blue}{+5-15x } \\\Leftrightarrow & -7x \color{blue}{-15x }
& = & 4 \color{blue}{+5} \\\Leftrightarrow &-22x
& = &9\\\Leftrightarrow & \color{red}{-22}x
& = &9\\\Leftrightarrow & \frac{\color{red}{-22}x}{ \color{blue}{ -22}}
& = & \frac{9}{-22} \\\Leftrightarrow & \color{green}{ x = \frac{-9}{22} } & & \\ & V = \left\{ \frac{-9}{22} \right\} & \\\end{align}\)
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vanhoeckes.be/wiskunde 2025-05-12 13:09:55