Jawabanmu

Jawaban paling cerdas!
2014-08-19T16:14:19+07:00
A) 2x + 2y - 7 + (4x - 3y + 9)
= 2x + 4x +2y - 3y -7 + 9 
=+ 6x - y + 2
2 4 2
2014-08-19T16:23:59+07:00
2x + 2y - 7 + (4x- 3y + 9)
= 6x - y + 2