simplify the following
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1.)21-12/3*2
=21-4*2
=21-8
=13
2.) 16+8/4-2*3
=16+2-2*3
=16+2-6
=18-6
=12
3.) 13-(12-6/3)
=13-(12-2)
=13-10
=3
4.) 19-[4+{16-(12-2)}]
=19-[4+{16-10)}]
=19-[4+6]
=19-10
=9
7.)5*(7-3)
=5*4
=20
8.)7+(2)2
=7+4
=11
9.)37-[5+{28-(19-7)}]
=37-[5+{28-12}]
=37-[5+16]
=37-21
=16
10.) 18-[24-{16(5-4-5)}]
=18-[24-{16*4}]
=18-[24-64]
=18-(-50)
=18+50
=68
5.)⬇️
=21-4*2
=21-8
=13
2.) 16+8/4-2*3
=16+2-2*3
=16+2-6
=18-6
=12
3.) 13-(12-6/3)
=13-(12-2)
=13-10
=3
4.) 19-[4+{16-(12-2)}]
=19-[4+{16-10)}]
=19-[4+6]
=19-10
=9
7.)5*(7-3)
=5*4
=20
8.)7+(2)2
=7+4
=11
9.)37-[5+{28-(19-7)}]
=37-[5+{28-12}]
=37-[5+16]
=37-21
=16
10.) 18-[24-{16(5-4-5)}]
=18-[24-{16*4}]
=18-[24-64]
=18-(-50)
=18+50
=68
5.)⬇️
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