Question

[(624+164:4-b):6]×3+254=554





dau coroana+30 de puncte

Answer 1

[(624+41-b):6]x3=554-254

[(665-b):6]x3=300

(665-b:6)=300:3

665-b:6=100

665-b=100x6

665-b=600

b=665-600

b=65

Sper ca te.am ajutat =)

Answer 2

Răspuns:

Explicație pas cu pas:

[ ( 624 + 164 : 4 - b ) : 6 ] × 3 + 254 = 554

[ ( 624 + 41 - b ) : 6 ] × 3 = 554 - 254

( 665 - b ) : 6 = 300 : 3

( 665 - b ) : 6 = 100

665 - b = 100 × 6

665 - b = 600

b = 665 - 600

b = 65  → numarul, aflat prin metoda mersului invers