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