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2. t
3. x pangkat dua
4. x pangkat dua
mungkin kalo gak salah!!!
5x=9+6
x=3
2. 2t=2/3 + 1/2
2t = 7/6
t=7/12
3. 2x-9x=8+6
-7x=14
x=-2
4. 4x-12-2x+6=8
2x=8+6
x=7