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20-5 [4-3 (2-1)]-5-3=
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2 votes
20-5 [4-3 (2-1)]-5-3=

User SteveMc
by
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2 Answers

1 vote
20-5 [4-3 (2-1)]-5-3=
20-5 [4-3+1]-5-3=
20-5-5-3=
10-3=
7
User Alejandro Lorefice
by
7.3k points
4 votes
Hello:
20-5×[4-3×(2-1)]-5-3;
=20-5×[4-6+3]-8;
=20-5×[1]-8;
=20-5-8;
=7

Bye :-)
User Lima
by
9.1k points
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