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293+(15:5+12÷4×a-81÷9)×5:2=293

Răspuns :

SignOfTheTimes
Bună,

293+(15:5+12:4a-81:9)•5:2 = 293
293+(3+3a-9)•5:2 = 293
293+(3a-6)•5:2 = 293
(3a-6)•5:2 = 0
(3a-6)•5 = 0
15a-30 = 0
15a = 30
a = 30/15
a = 2

Succes!
Fulgul3000
293+(15÷5+12÷4a-81÷9)×5÷2=293
293+(3+3a-9)×5÷2+293
293+(3a-6)×5÷2=293
(3a-6)×5÷2=0
(3a-6)×5=0
15a=30
a=30÷15
a=2
Sper ca te-am ajutat

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