Network
(5) (-2y + 8) – (3y + 6) = -5y + 2
(6) (14 – a) - (-9 – a) = 12
(7) (1/4 y + 6) – (- ½ y – 3) = ¼ y + 6 + ½ y + 3 = ¾ y + 9
Soal nomor 3
Aljabar Linear dan Perkalian serta Pembagian dengan Bilangan
(1) 9a × 3 = 27a
(2) (-5) × 8x = -40x
(3) -0,6y × 4 = -2.4y
(4) 12 × 4/3 a = 16a
(5) -3(a + 7) = -3a – 21
(6) (6x – 5) × 4 = 24x – 20
(7) ½ (8a – 6) = 4a – 3
(8) 12x-5/3 × 8 = 24x – 10
(9) 15y : 5 = 3y
(10) 21a : (-3) = -7a
(11) (-8x) : 20 = – 2/5 x
(12) 10a : 5/12 = 24a
(13) (10x – 35) : 5 = 2x - 7
(14) (-6a + 9) : (-3) = 2a - 3
(15) (12x + 4) : 2/3 = 18x + 6
Soal nomor 4
Menyederhanakan
(1) 4x+ 5(2x– 7) = = 4x + 10x - 35 = 14x - 35
(2) 7(2a – 1) + 6(-3a + 2) = 14a - 7 - 18a + 12 = -4a + 5
(3) -(4a + 7) + 3(a + 5) = -4a - 7 + 3a + 15 = -a + 8
(4) 9x – 2(x – 8) = 9x - 2x + 16 = 7x + 16
(5) 8(y – 1) - (7y + 2) = 8y - 8 - 7y - 2 = y - 10
(6) -5(x – 1) - 4(2x + 1) = 5x + 5 - 8x - 4 = -13x + 1
(7) 6(2a + 4) - 8(3 - a) = 12a + 24 - 24 + 8a = 20a
(8) ¼ (x – 8) + ½ (x – 4) = ¼ x – 2 + ½ x – 2 = ¾ x – 4
(9) 1/9 (3x + 7) – 1/3 (x + 2) = 1/3 x + 7/9 - 1/3 x – 2/3 = 1/9
