Лучший ответ:
1)x+7/12=3/4
x=3/4-7/12
x=9/12-7/12
x=2/12
x=1/6
2)x-1/6=1/9
x=1/9+1/6
x=2/18+3/18
x=5/18
3)x-3/5=3/8
x=3/8+3/5
x=15/40+24/40
x=39/40
4)x+5/24=7/12
x=7/12-5/24
x=14/24-5/24
x=9/24
x=3/8
5)y+2/7=1/3
y=1/3-2/7
y=7/21-6/21
y=1/21
6)x-1/6=7/9
x=7/9+1/6
x=14/18+3/18
x=17/18
7)y-3/8=5/32
y=5/32+3/8
y=5/32+12/32
y=17/32
8)y+2/5=1/2
y=1/2-2/5
y=5/10-4/10
y=1/10
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Answers & Comments
Лучший ответ:
1)x+7/12=3/4
x=3/4-7/12
x=9/12-7/12
x=2/12
x=1/6
2)x-1/6=1/9
x=1/9+1/6
x=2/18+3/18
x=5/18
3)x-3/5=3/8
x=3/8+3/5
x=15/40+24/40
x=39/40
4)x+5/24=7/12
x=7/12-5/24
x=14/24-5/24
x=9/24
x=3/8
5)y+2/7=1/3
y=1/3-2/7
y=7/21-6/21
y=1/21
6)x-1/6=7/9
x=7/9+1/6
x=14/18+3/18
x=17/18
7)y-3/8=5/32
y=5/32+3/8
y=5/32+12/32
y=17/32
8)y+2/5=1/2
y=1/2-2/5
y=5/10-4/10
y=1/10