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(99-b-3×8)+2x6: 2=8x2+5×10

Răspuns :

Răspuns:

15

Explicație pas cu pas:

(99-b-3×8)+2×6:2=8×2+5×10

(99-b-24)+12:2=16+50

(99-b-24)+6=66

(99-b-24)=66-6

99-b-24=60

99-b=60+24

99-b=84

b=99-84

b=15

Verific:

(99-15-3×8)+2×6:2=

(84-24)+2×6:2=

60+2×6:2=

60+12:2

60+6=

66✔