Rozwiąż równania ( proszę z obliczeniami.!) 1) 3(x +1) = 4(x - 1) 2) 7x - 1/2 = 5x + 2/4 3) 3(x - 1) = 4(x + 3) 4) -3(x - 2) = 2(x + 4) 5) 3 - 2(3 - 2x) = 5x 6) 5 - 6(2 - 3x) = 4x 7) 7(x - 1) + 7(-2x) = 3x Z obliczeniami poproszę.

1) 3(x +1) = 4(x - 1) 3x +3 = 4x -4 7=x 2) 7x - 1/2 = 5x + 2/4 2x = 1 x = 1/2 3) 3(x - 1) = 4(x + 3) 3x - 3 = 4x + 12 -x = 15 x = -15 4) -3(x - 2) = 2(x + 4) -3x + 6 = 2x + 8 -5x = 2 x = -2/5 5) 3 - 2(3 - 2x) = 5x 3- 6 +4x = 5x -3 = x 6) 5 - 6(2 - 3x) = 4x 5 - 12 + 18x = 4x -7 = -14x x = 1/2 7) 7(x - 1) + 7(-2x) = 3x 7x - 7 - 14x = 3x 7x - 14x - 3x = 7 -10x = 7 x = -0,7