Срочнооо сделайте 4)!!!!!

[latex] \frac{x}{12} + \frac{x}{6}+x=-8 \frac{3}{4} [/latex] [latex] \frac{x}{12} + \frac{x*2}{6*2}+\frac{x*12}{12} =-\frac{8*4+3}{4} [/latex] [latex] \frac{x+2x+12x}{12}=-\frac{35}{4}[/latex] [latex]\frac{15x}{12}=-\frac{35}{4}[/latex] [latex]\frac{3x}{3} *\frac{5}{4}=-7*\frac{5}{4}[/latex] [latex] \frac{3*x}{3*1}=-7[/latex] [latex] \frac{x}{1}=-7[/latex] [latex]x=-7[/latex] Ответ: [latex]-7[/latex]