Question
_______ $+ (-11) + 111 = 130$
✓
Answer
Let $x$ be the missing number, then:
$x + (-11) + 111 = 130$
$= > x -11 + 111 = 130$
$x = 130 -111 + 11= 30a$
$x + (-11) + 111 = 130$
$= > x -11 + 111 = 130$
$x = 130 -111 + 11= 30a$
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