tolong jawab dengan caranya sekaligus

1) 2^(4+x) = 8^(3+2x)
2^(4+x) = (2^3)^(3+2x)
2^(4+x) = 2^3(3+2x)
4 + x = 3(3 + 2x)
4 + x = 9 + 6x
4 - 9 = 6x - x
-5 = 5x
x = -1

2) 27^(x+1) = 3^2
(3^3)^(x+1) = 3^2
3^3(x+1) = 3^2
3(x + 1) = 2
3x + 3 = 2
3x = 2 - 3
x = -⅓

3) 1/16^x = 2^(x-1)
1/(2^4)^x = 2^(x - 1)
1/2^4x = 2^(x - 1)
2^-4x = 2^(x - 1)
-4x = x - 1
-4x - x = -1
-5x = -1
x = 1/5

4) 5^x / 25 = 5^4
5^x / 5^2 = 5^4
x - 2 = 4
x = 4 + 2 = 6