Question

Answer 1

a) \(< =>8x=\dfrac{3}{4}< =>x=\dfrac{3}{32}\)
b) \(< =>3x+\dfrac{2}{3}=\dfrac{1}{9}< =>3x=\dfrac{-5}{9}< =>x=\dfrac{-5}{27}\)
c) \(< =>20-\left(3x\right)=\dfrac{-7}{4}< =>x=\dfrac{47}{6}\)
d) \(< =>x\left(x-1\right)=0< =>\left\{{}\begin{matrix}x=0\\x=1\end{matrix}\right.\)
e) \(< =>2x\left(x+2\right)=0< =>\left\{{}\begin{matrix}x=0\\x=-2\end{matrix}\right.\)
f) \(< =>\left\{{}\begin{matrix}x=0\\4x-3=0\end{matrix}\right.< =>\left\{{}\begin{matrix}x=0\\x=\dfrac{3}{4}\end{matrix}\right.\)