Rozwiąż równania. a) -3x = 2x - 10 b) 2x - 2 = 7 - x c) 10 = 4 - 2x d) -(2x - 1) = 4

a) -3x = 2x - 10 -3x-2x=-10 -5x=-10/÷(-5) x=2 b) 2x - 2 = 7 - x 2x+x=7+2 3x=9/÷3 x=3 c) 10 = 4 - 2x 6=-2x/÷(-2) x=-3 d) -(2x - 1) = 4 -2x+1=4 -2x=3/÷(-2) x=-3/2=-1 i 1/2

a 10=2x+3x 10=5x /5 x=2 b 2x+x=7+2 3x=9 /3 x=3 c 2x=4-10 2x=-6 /2 x=-3 d -2x+1=4 -2x=4-1 -2x=3 /-2 x=-1,5

a) -3x = 2x - 10 / -2x -5x = -10 / : (-5) x = 2 b) 2x - 2 = 7 - x / +x 3x - 2 = 7 / +2 3x = 9 / :3 x =3 c) 10 = 4 - 2x / -4 6 = -2x / :(-2) x = -3 d) -(2x - 1) = 4 -2x + 1 = 4 / -1 -2x = 3 / :(-2) x = -1,5