Question

Dau coroana

[(x×9-63)×8-48:3+8=16

Answer 1

Răspuns:  x = 8

Explicație pas cu pas:

[( x × 9 - 63 ) × 8 - 48] : 3 + 8 = 16

[( x × 9 - 63 ) × 8 - 48 ] : 3 = 16 - 8

[( x × 9 - 63 ) × 8 - 48] : 3 = 8

( x × 9 - 63 ) × 8 - 48 = 8 × 3

( x × 9 - 63 ) × 8 - 48 = 24

( x × 9 - 63 ) × 8 = 24 + 48

( x × 9 - 63 ) × 8 = 72

x × 9 - 63 = 72 : 8

x × 9 - 63 = 9

x × 9 = 9 + 63

x × 9 = 72

x = 72 : 9

x = 8 → numarul, aflat prin metoda mersului invers