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Solve for the unknown number in the box: (x - 12) / 3 = 6

April 13, 2026Mathematics

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Answer

30

Step-by-step solution

3 steps

Let the unknown number in the box be $x$ .
The equation is:
$(x - 12) \div 3 = 6$
Multiply both sides of the equation by 3 to isolate the term in the parentheses.
$(x - 12) \div 3 \times 3 = 6 \times 3$ $x - 12 = 18$
Add 12 to both sides of the equation to solve for $x$ .
$x - 12 + 12 = 18 + 12$ $x = 30$
The number in the box is 30.
$30$

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