a)
5y=13 13/5=2,6
1y=2,6
b)
=-2
1/7*2/1=2/7
c)
-7b=7/8
7/8:7=
b=-1/42
d)
69-x=x+96
-2x=27
1x=-13,5
l)
1/2c+5=c+8
1/2c=3
1c=6
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a)
5y=13 13/5=2,6
1y=2,6
b)
=-2
1/7*2/1=2/7
c)
-7b=7/8
7/8:7=
b=-1/42
d)
69-x=x+96
-2x=27
1x=-13,5
l)
1/2c+5=c+8
1/2c=3
1c=6