15 y - 4-2 [y-9]+(5y + 6 = 0
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Step-by-step explanation:
15 y - 4-2 [y-9]+(5y + 6 =0
15 (y-4) -2(y-9) +5(y+6)=0
15y-60-2y+18+5y+30=0
15y-2y+5y-60+18+30=0
(20y-2y) (-60+48)=0
18y- 12=0
18y=12
y =12/18
y = 2/3
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