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Calculeaza:(2017-(525+5×a)÷4)÷3-287=362

Răspuns :

[2017-(525+5a):4]:3=362+287
[2017-(525+5a):4]:3=649/*3
2017-(525+5a):4=1947/*4
2017-(525+5a)=7788/+2017
525+5a=9985/-525
5a=9280/:5
a=1856