Question

[(X-28IMULTIT 2)IMULTIT3+5]IMULTIT 12=1644

Answer 1

[(x - 28 · 2) · 3 + 5] · 12 = 1644

[(x - 56) · 3 + 5] · 12 = 1644

(x - 56) · 3 + 5 = 1644 : 12 = 137

(x - 56) · 3 = 137 - 5 = 132

x - 56 = 132 : 3 = 44

x = 56 + 44 = 100.

/rfd

Answer 2

[ ( X - 28 × 2 ) × 3 + 5 ] × 12 = 1 644

( X - 28 × 2 ) × 3 + 5 = 1 644 : 12

( X - 28 × 2 ) × 3 + 5 = 137

( X - 56 ) × 3 = 137 - 5

( X - 56 ) × 3 = 132

X - 56 = 132 : 3

X - 56 = 44

X = 44 + 56

X = 100 → numarul, aflat prin metoda mersului invers