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3x+12x=18+2
15x=20 /15
x= 20/15
x=1 i 5/15
x= 1 i 1/3
spr: 12/3 + 2 =(-48)+18
15x-2=18/+2
15x=20/15
x=1⅓
3×1⅓-2=-12×1⅓+18
0=0
3x+12x=18+2
15x=20 /:15
x=1⅓
3×1⅓-2=-12×1⅓+18
2=2