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0,3x-0,2x=1/2
0,1x=1/2 /: 0,1
x=1/2 *10/1
x= 10/2 = 5
b) 31/2-2x=3x
-2x-3x=-31/2
-5x=-31/2 /:(-5)
x= - 3,1
c)5x-5=5-5x
5x+5x=5+5
10x=10 /:10
x = 1
0,3x-0,2x=1/2
0,1x=1/2
1/10x=1/2 /*10
x=10/2
x=5
spr.
0,3*5-1/2=0,2*5
1,5-1/2=1
1=1
L=P
3 1/2-2x=3x
-2x-3x=3=-3 1/2
-5x=-7/2 /:(-5)
x=(-7/2)*(-1/5)
x=7/10
spr.
3 1/2-2*7/10=3*7/10
3 1/2-14/10=21/10
3 5/10-14/10=21/10
35/10-14/10=21/10
21/10=21/10
L=P
5x-5=5-5x
5x+5x=5+5
10x=10 /:10
x=1
spr.
5*1-5=5-5*1
5-5=5-5
0=0
L=P