14х-2х+9х-х-5х=40
15х=40
х=2¹/₄
(2 ²/₅х+6 ¹/₂) : 1 ⁴/₇ - 2 ⁴/₉ = 4⁵/₉
(2 ²/₅х+6 ¹/₂) : 1 ⁴/₇ =4⁵/₉ + 2 ⁴/₉
(2 ²/₅х+6 ¹/₂) : 1 ⁴/₇=7
2 ²/₅х+6 ¹/₂=7*1 ⁴/₇
2 ²/₅х+6 ¹/₂=11
2 ²/₅х=11-6¹/₂
2 ²/₅х=4¹/₂
х=⁹/₂ / ¹²/₅
х=⁴⁵/₂₄=1²¹/₂₄
14х-2х+9х-х-5х=40
15х=40
х=2¹/₄
(2 ²/₅х+6 ¹/₂) : 1 ⁴/₇ - 2 ⁴/₉ = 4⁵/₉
(2 ²/₅х+6 ¹/₂) : 1 ⁴/₇ =4⁵/₉ + 2 ⁴/₉
(2 ²/₅х+6 ¹/₂) : 1 ⁴/₇=7
2 ²/₅х+6 ¹/₂=7*1 ⁴/₇
2 ²/₅х+6 ¹/₂=11
2 ²/₅х=11-6¹/₂
2 ²/₅х=4¹/₂
х=⁹/₂ / ¹²/₅
х=⁴⁵/₂₄=1²¹/₂₄