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jimin bts cute 17/07/2018 at 01:59
a, \(126+\left(-20\right)+2004+\left(-106\right)\)
\(=126+\left(-20\right)+2004+\left(-106\right)\)
\(=106+2004+\left(-106\right)\)
\(=106+\left(-106\right)+2004\)
\(=0+2004\)
\(=2004\)
Nguyễn Thị Ý Nhi selected this answer.