tolong jawabannya ya

A.
2x - 1 = 4x + 3
4x - 2x = -1 - 3
2x = -4
x = -2

HP = {-2}

B.
5x + 10 = -(3x + 6)
5x + 10 = -3x - 6
5x + 3x = -6 - 10
8x = -16
x = -2

HP = {-2}

C.
4 - 2/5x - 7 = 13
20 - 2x - 35 = 65
-2x - 15 = 65
-2x = 65 + 15
-2x = 80
x = -40

HP = {-40}

D.
(6-5x) / (x+3) = 1/2
x + 3 = 2(6 - 5x)
x + 3 = 12 - 10x
x + 10x = 12 - 3
11x = 9
x = 9/11

HP = {9/11}