Question

Solve:
15(y − 4) − 2(y − 9) + 5(y + 6) = 0

Answer 1

$$\begin{gathered} 15(y-4)-2(y-9)+5(y+6)=0 \\ \Rightarrow 15y-60-2y+18+5y+30=0 \\ \Rightarrow 15y-2y+5y-60+18+30=0 \\ \Rightarrow 18y-12=0 \\ \Rightarrow 18y=12 \\ \Rightarrow y=\frac{12}{18}=\frac{2}{3} \\ \therefore y=\frac{2}{3} \end{gathered}$$