tentukan penyelesaian persamaan linear satu variabel berikut: a.p-2p=9 b.3k+2=5k c.5x+3=2x-9

a. p-2p = 9
-p = 9
p = -9

b. 3k+2 = 5k
3k = 5k - 2
3k - 5k = -2
-2k = -2
k = 1

c. 5x+3 = 2x-9
5x+3-2x = -9
3x + 3 = -9
3x = -9 - 3
3x = -12
x = -4

1. P-2p=9
-9=p
2. 3k+2=5k
2=2k
1=k
3. 5x+3=2x-9
3x=-12
X=-4