Răspuns :
4( x + 3) + 2(2x - 2) = 5 x+ 14
4x + 12 + 4x - 4 = 5x + 14
4x + 4x - 5x = 14 - 12 + 4
3x = 6
x = 6 / 3
x = 2
4x + 12 + 4x - 4 = 5x + 14
4x + 4x - 5x = 14 - 12 + 4
3x = 6
x = 6 / 3
x = 2