а) -7x + 9x - 3x + 2x = -7x + 9x - 3x + 2x = 1x или x
б) 2b - 4b + 3b - 11b = 2b - 4b + 3b - 11b = -10b
в) -b + 5a - 7a + 3b + b = -b + 5a - 7a + 3b + b = -2a + 4b
г) 9 + 6a - 3 - 10a = 6a - 10a + 9 - 3 = -4a + 6
д) a - 6a + 8a = a - 6a + 8a = 3a
е) 2a + 3 + 4a - 5 = 2a + 4a + 3 - 5 = 6a - 2
а) -7x + 9x - 3x + 2x = -7x + 9x - 3x + 2x = 1x или x
б) 2b - 4b + 3b - 11b = 2b - 4b + 3b - 11b = -10b
в) -b + 5a - 7a + 3b + b = -b + 5a - 7a + 3b + b = -2a + 4b
г) 9 + 6a - 3 - 10a = 6a - 10a + 9 - 3 = -4a + 6
д) a - 6a + 8a = a - 6a + 8a = 3a
е) 2a + 3 + 4a - 5 = 2a + 4a + 3 - 5 = 6a - 2