smithdanielle6ow2vr4 smithdanielle6ow2vr4
  • 10-09-2017
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20-5 [4-3 (2-1)]-5-3=

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reant
reant reant
  • 10-09-2017
Hello:
20-5×[4-3×(2-1)]-5-3;
=20-5×[4-6+3]-8;
=20-5×[1]-8;
=20-5-8;
=7

Bye :-)
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14collegestudent
14collegestudent 14collegestudent
  • 10-09-2017
20-5 [4-3 (2-1)]-5-3=
20-5 [4-3+1]-5-3=
20-5-5-3=
10-3=
7
Answer Link

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