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Dnbionuty
a fost răspuns

Se stie ca :a=575:5+17x15-200;20
b=4x228-139x0-429
c=486:6-186:6-126:6

Sa se calculeze: b-a:[c+325:(65x5)]

Răspuns :

a=575:5+17x15-200:20
a=115+225-10
a=330

b=4x228-139x0-429
b=912-0-429
b=483

c=486:6-186:6-126:6
c=81-31-21
c=29

b-a:[c+325:(65x5)]
483-330:[29+325:(65x5)]=
483-330:[29+325:325]=
483-330:(29+1)=
483-330:30=
483-11=472

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