Rozwiąż równania



a) 2x + 6 = 12



b) 20 – 3x = 2x + 5



c) 2x + 4 = 4 – 3x



d) 2(x + 1) = 5



e) 3(x – 2) – 7 = 8



f) 2x – (3x + 1) = 6



g) 2 – (5 + x) = 2(3 – x



h) 5(x + 1 ) - (2x + 3) +4x = -x