Решите уравнения : (1,46 - 1/5х)-(0,86 - 2/9х) = 1

[latex](1,46-\frac{1}{5}x)-(0,86-\frac{2}{9}x)=1[/latex]   [latex]1,46-\frac{1}{5}x-0,86+\frac{2}{9}x=1[/latex]   [latex]\frac{2}{9}x-\frac{1}{5}x=1-1,46+0,86[/latex]   [latex]\frac{2x}{9}-\frac{1x}{5}=0,4[/latex]   [latex]\frac{10x-9x}{45}=0,4[/latex]   [latex]\frac{x}{45}=0,4[/latex]   [latex]x=0,4\cdot45[/latex]   [latex]x=18[/latex]