Rozwiąż równania razem ze sprawdzeniem: a) 2(x-1/2)-x+3=3 b) 0=3-(2x+1) c) 0=(x-1)-(3x-5) d) (-1/2x+1)+1 1/2x=3 e) 3(1-x)-(1-2x)=9 f) 0,5(2-4x)=3-x bardzo prosze o szybką odpowiedz :) !

a) 2(x-1/2)-x+3=3 2x -1 -x + 3 = 3 x = 1 spr: 2(1 - 1/2) -1 + 3 = 3 2 - 1 -1 +3 = 3 3=3 b) 0=3-(2x+1) 0 = 3 - 2x - 1 2x = 2 x = 1 spr: 0 = 3-(2*1+1) 0 = 3 - 2 -1 0 = 0 c) 0=(x-1)-(3x-5) 0 = x - 1 -3x + 5 2x = 4 x = 2 spr: 0 = (2 - 1) - (3*2 - 5) 0 = 1 - 6 + 5 0 = 0 d) (-1/2x+1)+1 1/2x=3 -1/2x + 1 +1 1/2x = 3 x = 2 spr: (-1 + 1) + 3 = 3 3 = 3 e) 3(1-x)-(1-2x)=9 3 - 3x -1 + 2x = 9 -x = 7 x = -7 spr: 3 + 21 - 1 - 14 = 9 9 = 9 f) 0,5(2-4x)=3-x 1 - 2x = 3 - x - x = 2 x = -2 spr: 1 + 4 = 3 + 2 5 = 5