Considerando U=R, Determine o conjunto solução das equações a seguir:
a) 2x - 7 = 7
b) 8y - 6 = 10
c) 7x + 1 = 9 + 5x
d) m + 9m + 5 = -15
e) 5t + 1 = -94
f) 15 - x = x = 25
g) 8x - 72 = 2x
h) 20a - 13 = 20 + 9a
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