Răspuns :
3X+2,32=x+11,8
3X-X=11,8-2,32
2X=9,48
X=9,48:2
X=4,74
Verificare: 3×4,74+2,32=4,74+11,8
14,22+2,32=16,54
16,54=16,54
3X-X=11,8-2,32
2X=9,48
X=9,48:2
X=4,74
Verificare: 3×4,74+2,32=4,74+11,8
14,22+2,32=16,54
16,54=16,54