Решите уравнение: а) x-3/20=4/5-1/2

Х=4/5-1/2+3/20
х=(16-10+3)/20
х=9/20

<span>x - </span>³/₂₀ = ⁴/₅ - ¹/₂
x - ³/₂₀ = ⁴ˣ²/₁₀ - ¹ˣ⁵/₁₀
x - ³/₂₀ = ⁴ˣ²/₁₀ - ¹ˣ⁵/₁₀
x - ³/₂₀ = ⁸/₁₀ - ⁵/₁₀
x - ³/₂₀ = ⁸⁻⁵/₁₀ 
x - ³/₂₀ = ³/₁₀ 
x = ³/₁₀ + ³/₂₀
x = ³ˣ²/₂₀ + ³/₂₀
x = ⁶/₂₀ + ³/₂₀
x = ⁶⁺³/₂₀ 
x = ⁹/₂₀