Răspunsuri

2014-10-22T16:00:05+03:00
3(2x+8-3x+15) = 4(3x+6-4x-4)+15
6x+24-9x+45 = 12x+24-16x-16+15
-3x+69 = -4x+23
-3x+4x = 23-69
x=-46