Question

решите уравнение (1,2x-1,08):0.3=6,4

Answer 1

(1,2x-1,08):0.3=6,4
( ⁶/₅ x - ²⁷/₂₅ ) : ³/₁₀ = 6.4
( ⁶/₅ x - ²⁷/₂₅ ) * ¹⁰/₃ = 6.4
4x - ¹⁸/₅ = 6.4
4x = 6.4 +  ¹⁸/₅
4x = ³²/₅ + ¹⁸/₅
4x=10
x= 10 : 4
x = ⁵/₂ = 2 ²/₁ = 2.5