Question

помогите пожалуйста, подпишусь и отдам все балы​

Answer 1

Ответ:

.............................

Answer 2

$6,2+\frac{2}{35} x=11\\\\\frac{62}{10}+\frac{2}{35}x=11|*70\\\\\frac{70*62}{10}+\frac{70*2}{35}x=11*70\\\\\frac{7*62}{1}+\frac{2*2}{1}x=11*70 \\\\7*62+2*2x=11*70\\\\434+4x= 770\\\\4x=770-434\\\\4x= 336\\\\x=336:4\\\\x=84$

Проверка:

$x=84\\\\6,2+\frac{2}{35}*84=11\\\\\frac{62}{10}+\frac{2*84}{35}=11\\\\\frac{62}{10}+\frac{168}{35}=11\\\\\frac{62*7}{10*7}+\frac{168*2}{35*2}=11\\\\\frac{434}{70}+\frac{336}{70}=11\\\\\frac{770}{70}=11\\\\11=11$