Rozwiąż 3 - x = 2 x + 8 2x ( x + 1 ) + 4 ( x - 5)

3 - x = 2x + 8 -x - 2x = 8 - 3 - 3x= 5 x= 5 : (-3) x= - 5/3 x= - 1 i 2/3 spr. 3 -x = 2x + 8 L= 3-x=  3 - (-1 i 2/3) = 3 + 1 i 2/3= 4 i 2/3 P= 2x + 8 = 2*(-1 i 2/3) + 8 = 2*(-5/3) + 8= - 10/3 + 8= - 3 i 1/3 +8 = - 4 i 2/3 L=P