Question

2x+3y=12 Complete the missing value in the solution to the equation. ( ,8)

Answer 1

$\bf 2x+3y=12~\hspace{5em}(\stackrel{x}{\phantom{X}},\stackrel{y}{8})~\hspace{5em}2x+3(\stackrel{\stackrel{y}{\downarrow }}{8})=12 \\\\\\ 2x+24=12\implies 2x=-12\implies x=\cfrac{-12}{2}\implies x=-6$