Question
$$x\cdot4-12x\cdot2+35 = 0$$
Answer
$$ x = \dfrac{7}{4} $$
Explanation
$$ \begin{aligned} x\cdot4-12x\cdot2+35 &= 0&& \text{simplify left side} \\[1 em]4x-24x+35 &= 0&& \\[1 em]-20x+35 &= 0&& \text{ move the constants to the right } \\[1 em]-20x &= -35&& \text{ divide both sides by $ -20 $ } \\[1 em]x &= \frac{-35}{-20}&& \\[1 em]x &= \frac{7}{4}&& \\[1 em] \end{aligned} $$
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