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1.½x + 3 = 9
=
1+6x = 18x
1= 12 x
x = 1/12
2.¼x + ½ = 7
1+2x = 28x
1= 26x
x = 1/26
3. 1/y - ½ = ⅓
6-3y = 2y
6= 5y
y= 6/5
4. 6/y + 3y = 15/4
24+12y=15y²
24+12y-15y² (hasil difaktorkan)
5. p/2 - p/3 = 1 - p/6
18p-12p = 36y-6py
12p+36py-36=0
6. ¼(3x + 7) = x - 2½
6x+14 = 8x-20
34=2x
x=17