September 2018 1 34 Report
Resolvé las ecuaciones y verificá los resultados.

a) x + 81 - 23 = 204

b) x : 2 - 4 . 12 = 8

c) (x - 31) : 11 = 3

d) 20 : 4 + 3 . x = 59

2
e) 9 . (x + 3 ) = 8 . 20 + 11
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