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p = 1
2. 10p-60=-5p
15p=60
p=4
3.5z-20=24-3z
8z=44
z=11/2
4.3d-9= 10d +5
-7d=14
d=-2
5.3n-2 = 6 -8-3x
3n+3x=0
6.30-5r+1 =p+1
-5r-p=-30
7.6x-9-2+2x-x-1=0
8x =12
x =3/2
maaf kalau ada yg salah ...