Question
$$35 = 3x-19$$
Answer
$$ x = 18 $$
Explanation
$$ \begin{aligned} 35 &= 3x-19&& \text{ swap the left and right side of the equation } \\[1 em]3x-19 &= 35&& \text{ move -19 to the right } \\[1 em]3x &= 35+19&& \\[1 em]3x &= 54&& \text{ divide both sides by $ 3 $ } \\[1 em]x &= \frac{54}{3}&& \\[1 em]x &= 18&& \\[1 em] \end{aligned} $$
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