Please help?

Question

27^x-1 = 9^2x

25^2-c = 125^2c-4

16^2p+1 = 8^3p+1

(-8)^1-2x = (-32)^1-x

Answer 1

i have shown you the other ones, you should be able to do this yourself.

27^(x-1) = 3^3(x-1) = 3^ 6x
5^2(2-c)=5^3(2c-4)
2(4(2p+1)=2^3(3p+1)
(-2)^3(1-2x)=(-2)^5(1-x)

solve for x...