Simplifique as expressões a) x-5+2x
b) 6.(2 - d)
c) 7c + 4 - 8 - 3c
d) - 9y + 2 . (5y - 2)
e) 4s + 3s . (20 : 5) + 6
f) (4 + 3t) . 3 - 8t - 7
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b) 6.(2 - d)
c) 7c + 4 - 8 - 3c
d) - 9y + 2 . (5y - 2)
e) 4s + 3s . (20 : 5) + 6
f) (4 + 3t) . 3 - 8t - 7
Ajudem prfv
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