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MERSUL INVERS Asa scrie in carte

MERSUL INVERS Asa Scrie In Carte class=

Răspuns :

[(x+15) x 10 - 100 ] : 5 = 100 - 90

(x+15) x 10 - 100 = 10 x 5

(x+15) x 10 = 50+100

x + 15 = 150 : 10

x + 15 = 15

x = 15-15

x = 0