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 2x = 4-10 2x = -6 / : 2 x = -3 d) -(2x-1) = 4 -2x+1 = 4 -2x = 4-1 -2x = 3 / : (-2) x = - ³/₂ x = -1 ½ e) 2(x+1) = x 2x+2 = x 2x-x = -2 x = -2 f) 2t - (3t+1) = 6 2t - 3t-1 = 6 2t-3t = 6+1 -t = 7 / :(-1) t = -7
a.x=2 b.x=3 c.x=3 d.x=1,5 e.x=-2 f.t=7
a)- 3x = 2x - 10 10=2x+3x 10=5x/;5 x=2 b)2x - 2 = 7 - x 2x+x=7+2 3x=9/;3 x=3 c)10 = 4 - 2x 10-4=2x 6=2x/;2 x=3 d)-(2x-1) = 4 -2x+1=4 -2x=4-1 -2x=3/;-2 x=-1,5 e) 2(x+1) = x 2x+1=x 2x-x=-1 x=-1 f)2t - (3t+1) = 6 6t(kwadrat)-2t=6 4t=6/;4 x=1,5
