а) 13а + 28а - 14а = 27а
б) 27X^2 - 11X^2 - 35X^2 = -19X^2
в) 1/2u + 1/3u + 1/6u = 1u
г) 1/12v^3 + 2/3v^3 - 5/6v^3 = 1/4v^3
а) 13а + 28а - 14а = 27а
б) 27X^2 - 11X^2 - 35X^2 = -19X^2
в) 1/2u + 1/3u + 1/6u = 1u
г) 1/12v^3 + 2/3v^3 - 5/6v^3 = 1/4v^3