Question

8×[708-4×(n÷2×5-24×2÷6)]=4480

Answer 1

708—4x(n:2x5—8)=4480:8=560

4x(n:2x5—8)=708—560=148

n:2x5—8=148:4=37

n:2x5=37+8=45

n=45x2:5=90:5=18 (daca inlocuiesti pe n cu 18 si faci calculele iti da 4480)

Answer 2

Răspuns

8 × [ 708 - 4 × ( n : 2 × 5 - 24 × 2 : 6 ) ] = 4 480

708 - 4 × ( n : 2 × 5 - 8 )  = 4 480 : 8

708 - 4 × ( n : 2 × 5 - 8 ) = 560

4 × ( n : 2 × 5 - 8 ) = 708 - 560

4 × ( n : 2 × 5 - 8 ) = 148

n : 2 × 5 - 8 = 148 : 4

n : 2 × 5 - 8 = 37

n : 2 × 5 = 37 + 8

n : 2 × 5 = 45

n : 2 = 45 : 5

n : 2 = 9

n = 9 × 2

n = 18 → numarul, aflat prin metoda mersului invers