8 Operations

Logic Level 1

\[\large 1 \; \square \; 2 \; \square \; 3\; \square \; 4\; \square \; 5 \; \square \; 6 \; \square \; 7 \; \square \; 8 \; \square \; 9 = 33\]

Seven of the eight "\(\square\)"s above are filled with "\(+\)", and the other one with "\(-\)".

Before which integer should the "\(-\)" sign be placed to make the equation true?

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