Rozwiąż równanie. a) 5x- 12= 4 +4x  b) 9x -8 = 3x +2  c)  10x -4 = 5x +8 d) 2x - 2 = -12x +18

a) 5x -12 = 4 + 4x 5x -4x = 4 + 12 x = 16 b) 9x -8 =3x +2 9x -3x = 2 +8 6x = 10 /:6 x= 1 i 2/3 c) 10x -4 = 5x + 8 10x -5x = 8 +4 5x = 12 /:5 x = 2 i 2/5 d) 2x -2 =-12x +18 2x +12x = 18 +2 14x = 20 /:14 x = 1 i 3/7

a) 5x- 12= 4 +4x  5x-4x=4+12 x=16 b) 9x -8 = 3x +2  9x-3x=2+8 6x=10 /:6 x=1 4/6 c)  10x -4 = 5x +8 10x-5x=8+4 5x=12 /:5 x= 2 2/5 d) 2x - 2 = -12x +18 2x+12x=18+2 14x=20 /:14 x= 1 6/14