Kunci Jawaban Matematika Kelas 7 halaman 84 85 86 87 Kurikulum Merdeka SMP: Aturan Penulisan Bentuk Aljabar

(1) 4a × (-2) = -8a
(2) (-6) × (-5x) = 30x
(3) 2(3x – 7) = 6x - 14

(4) (x – 8) × (-3) = -3x + 24
(5) (2x - 1)/3 x 6 = 2x - 1) x 2 = 4x - 2
(6) (-18a) : 6 = (-18/6) . a = -3a

Halaman 85

Soal nomor 1
Aljabar Linear

(1) 4a + 3a = 7a
(2) 8a – 6a = 2a
(3) -2x – 4x = -6x

(4) 9a – 10a = -a
(5) -2x + 7x = 5x
(6) 4a + 6 + a + 3 = 5a + 9

(7) -5x + 10 + 3x – 9 = -2x + 1
(8) 7 – 8a – a + 6 = -9a + 13
(9) 2,7x – 1,4x = 1,3x
(10) 2/3 y + 5/6 y = 3/2 y

Soal nomor 2

Penjumlahan dan pengurangan bentuk Aljabar

(1) (6x + 2) + (2x – 9) = 8x – 7
(2) (5 – 6x) + (9x – 7) = 3x – 2

(3) (4/9 x – 5/3) + (5/9 x + 4/3) = x – 1/3
(4) (7x + 4) – (5x – 1) = 2x + 5