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Mariaangelica
a fost răspuns

a)Calculati:
(15273-12753)x{[54:9+(12 x 7-19 x3)-4005:1335]-30+2=
Aflati valoarea lui ,,x".
b)(45:5+10 x 2-14)x 5:(7 x4-21:7)x13+10* x=729
Dau coroana

Răspuns :

Iasminamihaela
A] =2520x{[54:9+(12 x 7-19 x3)-4005:1335]-30+2=


    =2520x{[54:9+(84-19 x3)-4005:1335]}-30+2=
    =2520x{[54:9+(84-57)-4005:1335]}-30+2=
    =2520x[(54:9+27-4005:1335)]-30+2=
    =2520x[(6+27-4005:1335)]-30+2=
    =2520x[(6+27-3)]-30+2=
    =2520x[(33-3)]-30+2=
    =2520x(30)-30+2=
    =75600-30+2=
    =75570+2
    =75572
AlexandruAlexutzu
unde se inchide }acolada ?

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