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$$\left\{\frac{1}{x} \middle| x \neq 0 \right\}$$ $$\begin{align*} a &= 34 + x & b &= 2 + a & c &= a + b \\ d &= 22 + a & d &= 22x & d - c &= 0 \end{align*}$$ $$\begin{align*} 12+4x^2&=6 \\ 4x^2 &= 12 + 6 \\ x^2 &= \frac{18}{4} \\ x&= \sqrt{\frac{18}{4}} = \textstyle \sqrt{4.5} \\ \end{align*}$$ $$\bbox[20px,border:2px solid red]{x = \sqrt{4.5}}$$