Question

5 целых 2/3×(12-x)=1 целая 5/12

Answer 1

5²/₃×(12-x)=1⁵/₁₂
12-x = 1⁵/₁₂ : 5²/₃
12-x = ¹⁷/₁₂ : ¹⁷/₃
12-x = ¹⁷/₁₂ × ³/₁₇
12-x = ¹⁷ˣ³/₁₂ₓ₁₇
12-x = ³/₁₂
12-x = ¹/₄
-x = ¹/₄ - 12
-x = ¹/₄ - 11⁴/₄
-x = - 11³/₄
x = 11³/₄
x= 11,75