Błagam Pomóżcie ;) 1.Rozwiąż równania : a) 2(x+1)=4 b)4=2(x-1) c)3(x-2)=x d)3(2x+3)=x-1 e)4(x-1)=3(x+1) f)-(x-1)=2 PLSSS DAM NAJ :*** Ale się postarajcie bo to na ocenę :***

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

A) 2x + 2 = 4 / -2 2x = 2 x = 1 B) 4 = 2x - 2 / +2 6 = 2x / :2 x = 3 C) 3x - 6 = x / +6 3x = x + 6 / -x 2x = 6 / :2 x = 3 D)6x + 9 = x - 1 / -x 5x +9 = -1 / -9 5x = -10 / :5 x = -2 E)4x - 4 = 3x + 3 / -3x 1x -4 = 3 / +4 x = 7 F)-x + 1 = 2 / +x 1 = x + 2 / -2 x = -1

a) 2(x+1)=4 2x+2=4 2x=2 |:2 x=1 b) 4=2(x-1) 4=2x-2 6=2x |:2 x=3 c) 3(x-2)=x 3x-6=x -6=-2x |*(-1) 2x=6 |:2 x=3 d) 3(2x+3) = x-1 6x+9=x-1 5x=-9-1 5x=-10 |:5 x=-2 e) 4(x-1)=3(x+1) 4x-4=3x+3 x=4+3 x=7 f) -(x-1)=2 -x+1=2 -x=1 |*(-1) x=-1