X + 25 = 8 × 5
X + 25 = 40
X = 40-25
X = 15
52 - х = 64 ÷ 2
52 - х =32
- х =32-52
- х =-20
х=20
× - 27 = 100 ÷ 2
× - 27 = 50
× = 50+27
× = 77
X + 25 = 8 × 5
X + 25 = 40
X = 40-25
X = 15
52 - х = 64 ÷ 2
52 - х =32
- х =32-52
- х =-20
х=20
× - 27 = 100 ÷ 2
× - 27 = 50
× = 50+27
× = 77