Question Number 9902 by sahidraja786md@gmail.com last updated on 14/Jan/17
$${x}+\mathrm{3}{y}=\mathrm{6}, \\ $$$$\mathrm{2}{x}−\mathrm{3}{y}=\mathrm{12} \\ $$
Answered by ridwan balatif last updated on 14/Jan/17
$$\mathrm{x}+\mathrm{3y}=\mathrm{6} \\ $$$$\mathrm{2x}−\mathrm{3y}=\mathrm{12} \\ $$$$−−−−−−−\left(+\right) \\ $$$$\mathrm{3x}=\mathrm{18} \\ $$$$\mathrm{x}=\mathrm{6} \\ $$$$\mathrm{x}+\mathrm{3y}=\mathrm{6} \\ $$$$\mathrm{6}+\mathrm{3y}=\mathrm{6} \\ $$$$\mathrm{y}=\mathrm{0} \\ $$