rozw. w załączniku w częściach
a) x/2-x/4=2
4x/12-3x/12=2
4x-3x=24
x=24
b) 3x/4+5=5x/6 +2
5-2=10x/12-9x/12
3=x/12
x=36
c) x/5 + x/8 = 39
8x/40+5x/40=39
13x/40=39
13x=1560
x=120
d) x/6 + x/8 = 21
8x/48+6x/48=21
14x/48=21
14x=1008
x=72
e) 5/6 x - 3/4 x = 1
5/6-3/4=x
20/24-18/24=x
2/24=x
x=1/12
f) 1/5 x+ 2/3 x = 1,3
1/5+2/3=1,3x
3/15+10/15=13/10x
13/15=13/10x
x=2/3
g) 5/6 x - 1/3 x = 3/8
5/6-2/6=3/8x
3/6=3/8x
x=4/3
h) x/5 - x/10 - x/15 = 2
6x/30-3x/30-2x/30=2
x/30=2
x=60
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rozw. w załączniku w częściach
a) x/2-x/4=2
4x/12-3x/12=2
4x-3x=24
x=24
b) 3x/4+5=5x/6 +2
5-2=10x/12-9x/12
3=x/12
x=36
c) x/5 + x/8 = 39
8x/40+5x/40=39
13x/40=39
13x=1560
x=120
d) x/6 + x/8 = 21
8x/48+6x/48=21
14x/48=21
14x=1008
x=72
e) 5/6 x - 3/4 x = 1
5/6-3/4=x
20/24-18/24=x
2/24=x
x=1/12
f) 1/5 x+ 2/3 x = 1,3
1/5+2/3=1,3x
3/15+10/15=13/10x
13/15=13/10x
x=2/3
g) 5/6 x - 1/3 x = 3/8
5/6-2/6=3/8x
3/6=3/8x
x=4/3
h) x/5 - x/10 - x/15 = 2
6x/30-3x/30-2x/30=2
x/30=2
x=60