Question
$$4+3 = x-2$$
Answer
$$ x = 9 $$
Explanation
$$ \begin{aligned} 4+3 &= x-2&& \text{simplify left side} \\[1 em]7 &= x-2&& \text{ swap the left and right side of the equation } \\[1 em]x-2 &= 7&& \text{ move -2 to the right } \\[1 em]x &= 7+2&& \\[1 em]x &= 9&& \\[1 em]x &= 9&& \\[1 em] \end{aligned} $$
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