Equation 1: 4 + x = 12, 12 = 4 + x, 12 - x = 4, 12 - 4 = x, x = 12 - 4, Equation 2: 12 ∕ 4 = x, 4x = 12, 12 = 4x, x + x + x + x = 12,

Papan Peringkat

Gaya visual

Pilihan

Berganti templat

Pulihkan simpan otomatis: ?