Question

3x-2y=9 para (y=0) como resolver

Answer 1

$\Large\boxed{\begin{array}{l}\sf 3x-2y=9\bigg|_{y=0}\\\sf substitua~y~por~0~e~resolva\\\sf 3x-2\cdot0=9\\\sf 3x=9\\\sf x=\dfrac{9}{3}\\\sf x=3\end{array}}$