Помогите 40 баллов даю

3) [latex]x-(7 \frac{5}{9}-5 \frac{1}{6})=-3,5 [/latex] [latex]x-(7 \frac{10}{18}-5 \frac{3}{18})=- \frac{35}{10} [/latex] [latex]x-2 \frac{7}{18}=- \frac{35}{10} [/latex] [latex]x=- \frac{35}{10}+2 \frac{7}{18} [/latex] [latex]x=- \frac{630}{180}+2 \frac{70}{180} [/latex] [latex]x=- \frac{630}{180}+\frac{430}{180} [/latex] [latex]x=- \frac{200}{180} [/latex] [latex]x=- 1\frac{20}{180} [/latex] [latex]x=- 1\frac{1}{9} [/latex] 4) [latex]x-(-4.6+3 \frac{4}{7})=-8 \frac{1}{14} [/latex] [latex]x+4.6-3 \frac{4}{7}=-8 \frac{1}{14}[/latex] [latex]x=-8 \frac{1}{14}-4.6+3 \frac{4}{7}[/latex] [latex]x=-8 \frac{1}{14}-4.6+3 \frac{8}{14}[/latex] [latex]x=-7 \frac{15}{14}-4.6+3 \frac{8}{14}[/latex] [latex]x=-4 \frac{7}{14}-4.6[/latex] [latex]x=-4 \frac{1}{2}-4.6[/latex] [latex]x=-4 \frac{5}{10}-4.6[/latex] [latex]x=-4.5-4.6[/latex] [latex]x=-9.1[/latex]