a) 1/3x - 2 = x + 2
b) 1 - 6/7x = 4/7
c) 6 ( 1/4x - 2 ) = 18
d) x/6 - 1/6 = 1
e) -2 ( 2x - 1 ) = x/3
f) 2/5 ( 3 - x ) = -2
g) 3/4 ( 2 - 3x ) = -6
h) 1/5 ( x - 3 ) 9 - x
i) 0,6+x/2 = x +1
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a) 1/3x - 2 = x + 2 / *3 => 1/3x - 2 = x + 2
x - 6 = 3x + 6 / -6; -x 1/3*-6 - 2 = -6 + 2
-12 = 2x /:2 -2 -2 = -4
x = -6 -4=-4
b) 1 - 6/7x = 4/7 / *7 => 1 - 6/7x = 4/7
7 - 6x = 4 / -7 1 - 6/7*0,5 = 4/7
-6x = -3 / :(-6) 1 - 3/7 = 4/7
x = 0,5 4/7 = 4/7
c) 6 ( 1/4x - 2 ) = 18 => 6 ( 1/4x - 2 ) = 18
3/2x - 12 = 18 / +12 6 ( 1/4*20 - 2) = 18
3/2x = 30 / :3/2 6*3 = 18
x = 20 18=18
d) x/6 - 1/6 = 1 / *6 => x/6 - 1/6 = 1
x - 1 = 6 / +1 7/6 - 1/6 = 1
x = 7 1 = 1
e) -2 ( 2x - 1 ) = x/3 => -4* 6/13 -2 = x/3
-4x - 2 = x/3 / *3 -24/13 - 2 = x/3 /*3
-12x - 6 = x / +12x 72/13 - 6/1 = -6/13
-6 = 13x /:13 72/13 - 78/13 = -6/13
- 6/13 = x -6/13 = -6/13
f) 2/5 ( 3 - x ) = -2 => 2/5 ( 3 - x ) = -2
6/5 - 2/5x = -2 / *5 6/5 - 16/5 = -2
6 - 2x = -10 / -6 - 10/5 = -2
- 2x = -16 / :(-2) -2 = -2
x = 8
g) 3/4 ( 2 - 3x ) = -6 => 3/4 ( 2 - 3x ) = -6
6/4 - 9/4x = -6 / *4\ 6/4 - 9/4 * 4/3 = -6
6 - 9x = -6 / -6 6/4 - 3 = -6 / *4
-9x = - 12 / :(-9) 6 - 12 = -6
x = 1 1/3 -6 = -6
h) 1/5 ( x - 3 ) = 9 - x => 1/5 ( x - 3 ) = 9 - x
1/5x - 3/5 = 9 - x / *5 1/5*8 - 3/5 = 9 - 8
x - 3 = 45 - 5x / +3; +5x 8/5 - 3/5 = 1
6x = 48 / :6 5/5 = 1
x = 8 1 = 1
i) 0,6+x/2 = x + 1 / *10 => 0,6+x/2 = x + 1
6 + 5x = 10x + 10 / -10; -5x 0,6 - 0,4 = -0,8 +1
-4 = 5x / :5 0,2 = 0,2
-0,8 = x