6) Resolver las siguientes ecuaciones: a)
3x −7 = 20
b)
11x − 64 : 8 = (4 +14) : 6
c)
2x + 7 = 33
d)
2x + 6 = 38
3x −7 = 20
b)
11x − 64 : 8 = (4 +14) : 6
c)
2x + 7 = 33
d)
2x + 6 = 38
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