1) 2/3 * (-3/8x + 6) = -1/4x + 4
Итого: -1/4x - 12 + 4 + 3/4x = 2 + 1/2x
2) -2/9 * (2,7x - 1 1/2y) = -3/5x + 1/3y
Итого: -3/5x - 14/9x + 1/3y + 3/7y = -27/15x - 70/63y = -9/5x - 10/9y
1) 2/3 * (-3/8x + 6) = -1/4x + 4
3/7 * (28 - 7/12x) = -12 + 3/4xИтого: -1/4x - 12 + 4 + 3/4x = 2 + 1/2x
2) -2/9 * (2,7x - 1 1/2y) = -3/5x + 1/3y
1 1/6 * (2,4x - 1 5/7y) = -14/9x + 3/7yИтого: -3/5x - 14/9x + 1/3y + 3/7y = -27/15x - 70/63y = -9/5x - 10/9y