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20-5 [4-3 (2-1)]-5-3=
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20-5 [4-3 (2-1)]-5-3=
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Jul 6, 2018
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20-5 [4-3 (2-1)]-5-3=
Health
middle-school
SteveMc
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20-5 [4-3 (2-1)]-5-3=
20-5 [4-3+1]-5-3=
20-5-5-3=
10-3=
7
Alejandro Lorefice
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Jul 9, 2018
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Alejandro Lorefice
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4
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Hello:
20-5×[4-3×(2-1)]-5-3;
=20-5×[4-6+3]-8;
=20-5×[1]-8;
=20-5-8;
=7
Bye :-)
Lima
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Jul 13, 2018
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Lima
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