Jawabanmu

2014-09-05T09:35:39+07:00
1. 3(2x+y-4(3y-3y)=6x+3y-12y+2y=6x-7y
2. 5(2a-b)+2(a-b)=10a-5b+2a-2b=12a-7b
Jawaban paling cerdas!
2014-09-05T09:39:31+07:00
1. 6x+3y-12y+12y
= 6x-9y+12y
= 6x+3y

2. 10a-5b+2a-2b
= 10a+2a-5b-2b
= 12a-7b