tolong di jwb dgn benar

d) 2(x + 5) = 3(2x - 6)
2x + 10 = 6x - 18
2x - 6x = -18 - 10
-4x = -28
x = -28/-4 = 7

e) x+2 / 3 = 5 - x/2
--------------------------- × 6
2(x + 2) = 5×6 - 3x
2x + 4 = 30 - 3x
2x + 3x = 30 - 4
5x = 26
x = 26/5 = 5,2

f) (x-2 / 7) - (3+2x / 2) = 2x-1 / 4
--------------------------------------------- × 28
4(x-2) - 14(3+2x) = 7(2x-1)
4x - 8 - 42 - 28x = 14x - 7
-24x - 14x = -7 + 8 + 42
-38x = 43
x = -43/38