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afla numerele necunoscute a) ( x+396)÷4=185; b) 786+ a÷18=1416; c) [( b+27)×2-325]×3=1047​

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ImAndreea10ask

Explicație pas cu pas:

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a) (x+396):4=185

x+396=185×4

x+396=740

x=740-396

x=344✅

b) 786+a:18=1416

a:18=1416-786

a:18=630

a=630×18

a=11340✅

c) [(b+27)×2-325]×3=1047

(b+27)×2-325=1047:3

(b+27)×2-325=349

(b+27)×2=349+325

(b+27)×2=674

b+27=674:2

b+27=337

b=337-27

b=310✅

Succes !!;)

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