tolong bantu saya yaaaa :) ada 50 poin menunggu :) bsk dikumpulkan :

Jawaban No. 1 - 4 Saya Lampirkan Dalam Bentuk Foto

Jawaban No. 5
(0,5x + 2,7)/1,3 = 4,5 - 6,2x/7,6
(0,5x + 2,7) 7,6 = (4,5 - 6,2x) 1,3
3,8x + 20,52 = 5,85 - 8,06x
3,8x + 8,06x = 5,85 - 20,52
11,86x = -14,67
x = -14,67/11,86
x = -1 2,81/11,86
x = -1,23693086
x = -1,24

No. 6
(6x - 25)/7 + (35 + 15x)/2 = (34x - 17)/4
(6x - 25)/7 * 4/4 + (35 + 15x)/2 * 14/14 = (34x - 17)/4 * 7/7
(24x - 100)/28 + (490 + 1.710x)/28 = (238x - 119)/28          (x28)
24x - 100 + 490 + 1.710x = 238x - 119
24x + 1.710x - 238x = -119 + 100 - 490
1.496x = -509
x = -509/1.496
x = -0,34

Semoga Membantu,,,,