Question

1,2y+(7,5−9)=0+7,5−3,8y.
Решите уравнение

Answer 1

$1,2y+(7,5-9)=0+7,5-3,8y\\1,2y+9-1,5)=7,5-3,8y\\1,2y-1,5=7,5-3,8y\\1,2y+3,8y=7,5+1,5\\5y=9\\y=\frac{9}{5}=1\frac{4}{5}=1,8$