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25-15=6y+4y
10=10y
1=y
d. 2- 2/3x=4
-2/3x = 2
3x = 2/-2
x = -1/3
2. Jika 3x+10=19, tentukan nilai dri x + 2 !
3x+10=19
3x=9
x=3
x+2=
3+2=5
3x = 19 - 10
3x = 9
x = 9/3
x = 3
jadi 3+2 = 5