$$404.23x\cdot2+40.697x+0.0132 = 0.118$$

$$ \begin{aligned} 404.23x\cdot2+40.697x+0.0132 &= 0.118&& \text{simplify left side} \\[1 em]404x\cdot2+40x+0.0132 &= 0.118&& \\[1 em]404x\cdot2+40x+0.0132 &= 0.118&& \\[1 em]808x+40x+0 &= 0.118&& \\[1 em]808x+40x+0 &= 0.118&& \\[1 em]848x &= 0.118&& \text{move the $ \color{blue}{ 0 } $ to the left side} \\[1 em]848x+0 &= 0&& \text{ divide both sides by $ 848 $ } \\[1 em]x &= \frac{0}{848}&& \\[1 em]x &= 0&& \\[1 em] \end{aligned} $$

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