Rozwiąż równania : a) -3x = 2x - 10 b) 2x - 2 = 7 - x c) 10 = 4 - 2x d) -(2x - 1) = 4 e) 2(x + 1) = x f) 2t - (3t + 1) = 6 g) -(4 + x) = 2(3-x) h) 3(y + 6) - y = 2(y + 9) i) (x-7) - 2(3x + 5) = 3 Proszę na dziś !! Thx

a) -3x = 2x - 10 -3x - 2x = -10 -5x =-10 x = 2 b) 2x - 2 = 7 - x 2x + x = 7 +2 3x = 9 x = 3 c) 10 = 4 - 2x 10 - 4 = -2x 6 = -2x x = -3 d) -(2x - 1) = 4 -2x+1=4 -2x=4-1 -2x = 3 x = - 3/2 e) 2(x + 1) = x 2x + 2 = x 2x - x = -2 x= -2 f) 2t - (3t + 1) = 6 2t -3t - 1 = 6 -t = 7 t = -7 g) -(4 + x) = 2(3-x) -4 -x = 6 - 2x -4 -6 = -2x + x -10 = -x x = 10 h) 3(y + 6) - y = 2(y + 9) 3y + 18 - y = 2y + 18 3y - y - 2y = 18 - 18 0=0 i) (x-7) - 2(3x + 5) = 3 x-7-6x-10=3 -5x=3+17 -5x=20 x=-4