а) 6x - (2,4 - x) + (1,4 - 5x)6x - 2,4 + x + 1,4 - 5x6x + x - 5x - 2,4 + 1,42x - 1
б) 5/8(2x - y) - (1/4x + 3/8y)(5/8) * 2x - (5/8)y - (1/4)x - (3/8)y(10/8)x - (5/8)y - (1/4)x - (3/8)y(5/4)x - (5/8)y - (3/8)y(5/4)x - (8/8)y(5/4)x - y
а) 6x - (2,4 - x) + (1,4 - 5x)
6x - 2,4 + x + 1,4 - 5x
6x + x - 5x - 2,4 + 1,4
2x - 1
б) 5/8(2x - y) - (1/4x + 3/8y)
(5/8) * 2x - (5/8)y - (1/4)x - (3/8)y
(10/8)x - (5/8)y - (1/4)x - (3/8)y
(5/4)x - (5/8)y - (3/8)y
(5/4)x - (8/8)y
(5/4)x - y