1) 5 - 35 + 56 = + 56 = + 56 = ( × 56) = 8 = 3
2) x - x - 2 = 0
2 × x - x = 2
x = 25
x = 25 = ± 5
3) = × = × 2 =
1)
5 -
35 +
56 = 
+
56 = 
+
56 =
(
× 56) =
8 = 3
2)
x -
x - 2 = 0
2 ×
x -
x = 2
x = 25 = ± 5
3)
=
× 
=
× 2 = 