Incorrect. Rewrite the second equation as its opposite: $\displaystyle-{2}{x}+{7}{y}=-{41}\usepackage{cmbright}\Huge\$ . Add this equation to $\displaystyle{7}{x}-{7}{y}={21}\usepackage{cmbright}\Huge\$ to eliminate y. Solve for x and substitute this into the first equation. Solve for y.