Tentukan niilai x dari 4x + 5 = 2 ( x – 1 )

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

Itu jawabannya.

4x + 5 = 2x -2
4x – 2x = -2 -5
2x = -7
x = -7/2
x = 3 1/2