拟合一系列线性模型来分离不同分组变量的因变量

Hi: I have six continuous dependent variables and one independent variable for three countires. I would like to see what the coefficient is for y1 to y6 ~ x1 for each country. Is there a way to do this neatly with dplyr and broom? I know dplyr fairly well but am new to broom. Hi: I have six continuous dependent variables a