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x-0.5=4.5
x=4.5+0.5
x=5
b.incorrecto
m-5=7
8 12
m=7 + 5
12 8
m=22
12
c.incorrecto
-3+y=0
5
y=3
5
d.incorrecto
0,6m+1,8=-4
0,6m=-4-1,8
m=-5,8
0,6
m=9,66
e.correcto
2x-11=-1
7
2x=-1+11
7
x=4x1
7 2
x=2
7