Tìm x biết: |x| - 5 = -1; |x + 2| - 12 = -1; -121 - (-35 - x) = 50

a, /x/-5=-1
b, /x+2/-12=-1
c,-121-(-35-x) =50
d, (x+1) ^2=(x+1) ^0
e, (2x-1) ^5=(2x-1) ^7
g,3^2x:3^2=81
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