rozwiąż równania 2-2x=5 97=2x-5 43=7+9x 17=11-12x

2-2x=5 -2x = 5 -2 -2x= 3 x= 3 : (-2) x= - 1,5 spr. 2-2x= 5 L= 2-2x= 2 - 2(-1,5) = 2 -(-3) = 2+3=5 P=5 5=5 L=P 97=2x-5 97 +5 = 2x 102 = 2x 102 : 2= x 56 = x spr. 97 = 2x - 5 L= 97 P= 2x- 5 = 2 * 56 - 5= 102-5=97 97=97 L=P 43=7+9x 43 - 7 = 9x 36 = 9x 36 : 9 = x 4=x spr. 43 = 7 + 9x L=43 P= 7 + 9x = 7 + 9*4= 7 + 36= 43 43=43 L=P 17=11-12x 17 - 11= - 12x 6= - 12x 6 : (-12) = x - 0,5= x spr. 17= 11 - 12x L= 17 P= 11 - 12x= 11 - 12 * (-0,5) =  11 - (-6) = 11 + 6= 17 17=17 L=P