c)
1/3 x +1=5 /*3
x + 3 = 15
x = 15 -3
x = 12
d)
3x+5=2x
3x – 2x = -5
x = -5
e)
-x-3=x-4
-x –x = -4 +3
-2x = -1 /: (-2)
x = 1/2
f)
1/2 x = 1/3 x-1 /*6
3x = 2x -6
3x -2x = -6
x = -6
g)
1/2 x+ 1/5 x- 1/10 x=2 /*10
5x + 2x –x =20
6x = 20 /: 6
x = 20/6
x = 3 i 2/6
x = 3 i 1/3
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c)
1/3 x +1=5 /*3
x + 3 = 15
x = 15 -3
x = 12
d)
3x+5=2x
3x – 2x = -5
x = -5
e)
-x-3=x-4
-x –x = -4 +3
-2x = -1 /: (-2)
x = 1/2
f)
1/2 x = 1/3 x-1 /*6
3x = 2x -6
3x -2x = -6
x = -6
g)
1/2 x+ 1/5 x- 1/10 x=2 /*10
5x + 2x –x =20
6x = 20 /: 6
x = 20/6
x = 3 i 2/6
x = 3 i 1/3