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Magura123
a fost răspuns

35×f+(800-752:4):2=551 va rog prin metoda inversa

Răspuns :

Ramona19852007
35 x f + ( 800 - 752 : 4 ) : 2 = 551
35 x f + ( 800 - 188 ) : 2 = 551
35 x f + 612 : 2 = 551
35 x f + 306 = 551
35 x f = 551 - 306
35 x f = 245
f = 245 : 35
f = 7
35xf+(800-188)=551x2=1102
35xf+612=1102
35xf=1102-612=490
35xf=490
f=490:35
f=14

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