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((m÷4+6)÷3×5+25)-17=28


Răspuns :

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((m÷4+6)÷3×5+25)-17=28
(m÷4+6)÷3×5+25=17+28
= 45
(m÷4+6)÷3×5=45-25
=20
(m÷4+6)÷3=20÷5
=4
(m÷4+6)=3×4
=12
m÷4=20
m=4×20
m=80