YANG NO 2 BUKAN AB ATAU C YA.
JAWABANNYA PAKAI JALANNYA JUGA YA KAK.
KAK TOLONG BAGI YANG BISA JAWAB.
Yang mempunyai penyelesaian 3 = B
4x = 12
x = 3
Selesaikan
(1) x -4 = -1
x = -1 + 4
x = 3
(2) x + 5 = -2
x = -2 -5
x = -7
(3) 7x = -42
x = -42/7
x = -6
(4) 1/3 x = 9
x = 9 : 1/3
x = 9 x 3/1
x = 27
Selesaikan
(1) 2x -3 = 5
2x = 5 + 3
2x = 8
x = 4
(2) 3x = 5x -12
3x – 5x = -12
-2x = -12
x = 6
(3) 6x -17 = -3x + 10
6x + 3x = 10 + 17
9x = 27
x = 3
(4) 4x + 12 = 7 – x
4x + x = 7 – 12
5x = -5
x = -1
(5) 5 -4x = 2x -1
-4x -2x = -1 -5
-6x = -6
x = 1
(6) 3 (x -5) = -6
3x -15 = -6
3x = -6 + 15
3x = 9
x = 3