Aneka Hitungan (1) 3(a + 2b) + 6(a - b) (2) -(5x - y) +

Hasil penyederhanaan bentuk aljabar: (1) 9a (2) 7x - 3y (3) x + 2y (4) 5a + 7b (5) 6x - 2y - 2 (6) (-a - 3b)/12 (7) (11a - b)/24 (8) (5x + 7y)/6 (9) (x - 5y)/2

Pembahasan

(1) 3(a + 2b) + 6(a - b) = 3a + 6b + 6a - 6b = 9a
(2) -(5x - y) + 4(3x - y) = -5x + y + 12x - 4y = 7x - 3y
(3) 2(4x + y) - 7x = 8x + 2y - 7x = x + 2y
(4) 8a - 5b - 3(a - 4b) = 8a - 5b - 3a + 12b = 5a + 7b
(5) 4(2x - y) - 2(x - y + 1) = 8x - 4y - 2x + 2y - 2 = 6x - 2y - 2
(6) 1/4 (a - 3b) - 1/6 (2a - 3b) = (3(a - 3b) - 2(2a - 3b))/12 = (3a - 9b - 4a + 6b)/12 = (-a - 3b)/12
(7) (2a - b)/6 + (a + b)/8 = (4(2a - b) + 3(a + b))/24 = (8a - 4b + 3a + 3b)/24 = (11a - b)/24
(8) (4x - y)/3 - (x - 3y)/2 = (2(4x - y) - 3(x - 3y))/6 = (8x - 2y - 3x + 9y)/6 = (5x + 7y)/6
(9) x - (x + 5y)/2 = (2x - (x + 5y))/2 = (2x - x - 5y)/2 = (x - 5y)/2