Question

(7,5*3,8+7,5*6,2):(х+1)=25:х​

Answer 1

$(7,5*3,8+7,5*6,2):(x+1)=25:x\\\frac{7,5*3,8+7,5*6,2}{x+1} =\frac{25}{x}$

ОДЗ: $\left \ [{{x\neq -1} \atop {x\neq 0}} \right.$

$\frac{7,5*(3,8+6,2)}{x+1} =\frac{25}{x} \\\frac{7,5*10}{x+1} =\frac{25}{x}\\\frac{75}{x+1} =\frac{25}{x} \\\\75x=25(x+1)\\75x=25x+25\\75x-25x=25\\50x=25\\x=25:50\\x=0,5$