Jawabanmu

2014-02-09T21:28:25+07:00
Yg satu jenis di jumlahin jadi -9x +10= 1, terus 10 dipindah ruas jadi -10 jadi -9x =1-10, -9x=-9 x = 1
2014-02-09T21:28:32+07:00
-5x -4x + 10 = 1
-9x = 1 -10
-9x = -9
x = -9/9
x = 1