mn giúp e ạ
a) \(4567+\left(1234-4567\right)-4\)
\(=4567+1234-4567-4\)
=1230
b) \(2001-\left(53+1579\right)-\left(-53\right)\)
\(=2001-53-1579+53\)
\(=422\)
c) \(35-17+2017-35+\left(-2017\right)\)
\(=\left(35-35\right)+\left(2017-2017\right)-17\)
\(=-17\)
d) \(37+\left(-17\right)-37+77\)
\(=\left(37-37\right)+\left(77-17\right)\)
=60
e) \(-\left(-219\right)+\left(-219\right)-401+12\)
\(=219-219-401+12\)
=-389
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