192. Приведите подобные слагаемые: 1) 4x - 13x + 29x - 14x; 2)-5у - 28y + 16y – 17y; 3) 1,8b – c + b − 4,3c; 4) 2,3a + 1,8 – 3,2a – 2,4; 5) 2,9c-4,7d + 4,3 - 3,4c + 3,1d; 5 4 9 3 7 4 6)-x+y+x-y. 6

4x - 13x + 29x - 14x = (4 - 13 + 29 - 14)x = 6x

-5y - 28y + 16y - 17y = (-5 - 28 + 16 - 17)y = -34y

1,8b - c + b - 4,3c = (1,8 + 1)b + (-1 - 4,3)c = 2,8b - 5,3c

2,3a + 1,8 - 3,2a - 2,4 = (2,3 - 3,2)a + (1,8 - 2,4) = -0,9a - 0,6

2,9c - 4,7d + 4,3 - 3,4c + 3,1d = (2,9 - 3,4)c + (-4,7 + 3,1)d + 4,3 = -0,5c - 1,6d + 4,3

-\(\frac{5}{6}\)x + \(\frac{4}{9}\)y + \(\frac{3}{4}\)x - \(\frac{7}{12}\)y = \(\frac{-5 \cdot 2 + 3 \cdot 3}{12}\)x + \(\frac{4 \cdot 4 - 7 \cdot 3}{36}\)y = \(\frac{-10 + 9}{12}\)x + \(\frac{16 - 21}{36}\)y = -\(\frac{1}{12}\)x - \(\frac{5}{36}\)y = -\(\frac{x}{12}\) - \(\frac{5y}{36}\)