Tìm x: |x + 1/5| - 4 = 2

tìm x : a, |x+1/5|-4=2
b,-15/12.x+3/7 =6/5.x+1/2
c,x+2/2010+x+3/2009+x+4/2008+x+5/2007+x+2007/5=-5
d,x-1/-15=-60/x-1