49¹¹ : 7¹¹ + 7¹³ : 7 = 8 x 7¹¹→ Adevarat
( 49 : 7 )¹¹ + 7 ⁽ ¹³ ⁻ ¹ ⁾ =
= 7¹¹ + 7¹² =
= 7¹¹ x ( 1 + 7 ) =
= 7¹¹ x 8
