[latex]9m-14=-8[/latex] [latex]9m-14+14=-8+14[/latex] [latex]\frac{9m}{9}=\frac{6}{9}[/latex] [latex]x=\frac{6}{9}[/latex]

[latex]9m-14= -8 \ \ \ | +14 \\ \\9m -14 + 14=-8+14 \\ \\ 9m = 6 \ \ /:9 \\ \\m=\frac{6}{9}\\ \\m=\frac{2}{3}[/latex]