5×+14=3×-2 5(×+2)+15=8 (×+2)
5×+14=3×-2 5x -3x=-2-14 2х=-16 |:2 х=-8 5(×+2)+15=8 (×+2) 5(х+2)-8(х+2)=-15 (5-8)*(х+2)=-15 -3(х+2)=-15 |:3 х+2=5 х=5-2 х=3