Tìm x biết: 7/4x + 3/2 = -4/5

Tìm x 
a, 7/4x+3/2=-4/5
b, x+1/2=4
c, (x+1/2)^2=4/25
d,5x-/9-7x/=3
e, (x-1)^2=(x-1)^4
g, 5^1×25^x=125