Jawabanmu

2014-09-08T21:41:11+07:00
A) 5x+7x-6y-2y+8z-9z+9z -10 = 12x - 8y + 8z - 10
b) 13a + 12a - 8b + 9b = 25a + b
2014-09-08T21:44:38+07:00
A. 5x + 7x - 6y - 2y + 8z - 9z + 9z - 10 = 12x - 8y + 8z - 10
b. 13a + 12a - 8b + 9b = 25a + b