Ответ:
1) 18/30-x=4/30+6/30
18/30-x=10/30
x=10/30+18/30
x=28/30
x=14/15
2)(13/67+6/67)-x=9/67
19/67-x=9/67
x=9/67+19/67
x=28/67
3)10/15+(5/15-x)=14/15
5/15-x= 14/15-10/15
5/15-x=4/15
x= 4/15+5/15
x=9/15
4)34/60+8/60+y=41/60+16/60
42/60+y=57/60
y=57/60-42/60
y=15/60
y=3/12
5)64/70-(x+26/70)=5/70
x+26/70=5/70+64/70
x+26/70=69/70
x=69/70-26/70
x=43/70
6)x+27/46=35/46+2/46
x+27/46=37/46
x=37/46-27/46
x=10/46
x=5/23
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Answers & Comments
Ответ:
1) 18/30-x=4/30+6/30
18/30-x=10/30
x=10/30+18/30
x=28/30
x=14/15
2)(13/67+6/67)-x=9/67
19/67-x=9/67
x=9/67+19/67
x=28/67
3)10/15+(5/15-x)=14/15
5/15-x= 14/15-10/15
5/15-x=4/15
x= 4/15+5/15
x=9/15
4)34/60+8/60+y=41/60+16/60
42/60+y=57/60
y=57/60-42/60
y=15/60
y=3/12
5)64/70-(x+26/70)=5/70
x+26/70=5/70+64/70
x+26/70=69/70
x=69/70-26/70
x=43/70
6)x+27/46=35/46+2/46
x+27/46=37/46
x=37/46-27/46
x=10/46
x=5/23