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3x+x=8+5
4x=13 /:4
x= 3 1/4
b)4(x-2)=2x
4x-8=2x+6
4x-2x=6+8
2x=14 /:2
x=7
c)0,1x+0,3=0,5x-0,2
1/10x+3/10=5/10x-2/10 /*10
x+3=5x-2
-4x=-2-3
-4x=-5 /:(-4)
x= 5/4
d)⅓x-4=x+2 /*3
x-12=3x+6
-2x=18 /*(-2)
x=-9
4x-5=8 /+5
4x=13 /:4x
x=3.25
b)4(x-2)=2x+6
4x-8=2x+6 /-2x
2x-8=6 /+8
2x=14 /;2
x=7
c)0,1x+0,3=0,5x-0,2 /*10
1+3=5x-2 /+2
3+5=5x /-3
2=5x /:5x
x=2.5
d)⅓x-4=x+2 /*3
1x-12=3x+6 /-x
-12=2x+6 /-6
-18=2x /:2x
x=-9
licze na naj:D
3x+x=8+5
4x=13 /:4
x=3;25
b) 4(x-2)=2x+6
4x-8=2x+6
4x-2x=6+8
2x=14 /:2
x=2
c) 0,1x+0.3=0,5x-0,2
0,1x-0,5x=-0,2-0,3
-0,4x=-0,5 /*10
-4x=-5 /:(-4)
x= 5/4
x=1,25