penyelesaian PLSV dari : 1/2 ( x + 5 ) = 1/3 ( 6x - 3 )

Kelas 7 Matematika
Bab Persamaan Linear

1/2 (x + 5) = 1/3 . (6x - 3)

** dikali 6 **

3 (x + 5) = 2 (6x - 3)
3x + 15 = 12x - 6
3x - 12x = -6 - 15
-9x = -21
x = -21/-9
x = 7/3

1/2 ( x + 5 ) = 1/3 ( 6x - 3 )
1/2x + 5/2 = 2x -1
x + 5 = 4x -2
x - 4x = -2 -5
-3x = -7
x = -7/-3
x = 7/3