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100•[25-5•(x-3)+2]÷4=300 Calculati

Răspuns :

100(25 - 5x + 15 + 2)=1200
2500 - 500x + 1500 + 200=1200
500x = 3000
x = 60
100.[25_5.(X-3)+2]=75
25-5.(X_3=7500
5.(X_3)=7498