Jawabanmu

2014-08-30T16:00:08+07:00
A. 20y-100
B. 4X-20
C. 14x-49-4xy+14y = 14x-4xy+14y-49
2014-08-30T16:21:13+07:00
A. 20y - 100
b. 5x - 1x + 25 - 5 = 4x + 20
c. 14x - 49 - 4xy - 14y