Tìm x, biết |x - 2| = x

tìm x
a,/x-2/=x
b,/x-3/+/2,6-x/=0
c,<x+5>^3=-64
d,<2x-3>^2=9
e,x^2+1=81
f,x^2+7/4=23/4
g,<2x+3>^2=25