1⁵/₇х - ⁵/₉ = 2⁴/₉ ¹²/₇х - ⁵/₉ = ²²/₉ ¹²/₇х = ²²/₉ + ⁵/₉ ¹²/₇х = ²²⁺⁵/₉ ¹²/₇х = ²⁷/₉ ¹²/₇х = 3 x = 3 : ¹²/₇ x = ³/₁ × ⁷/₁₂ x = ³ˣ⁷/₁ₓ₁₂ x = ⁷/₁ₓ₄ x = ⁷/₄ x = 1³/₄ x = 1,75
у - 2⁵/₁₂ = -3⁷/₁₅ у - ²⁹/₁₂ = -⁵²/₁₅ у = -⁵²/₁₅ + ²⁹/₁₂ у = -⁵²ˣ⁴/₆₀ + ²⁹ˣ⁵/₆₀ у = -²⁰⁸/₆₀ + ¹⁴⁵/₆₀ у = ⁻²⁰⁸⁺¹⁴⁵/₆₀ y = -⁶³/₆₀ y = - 1³/₆₀ y = - 1¹/₂₀ y = - 1,05