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a fost răspuns

((8/7+18/7)x(1/30-1/15-1/45)):(-0,01)+99

Răspuns :

Spidie
[(8/7+18/7)×(1/30−1/15−1/45)]/ (-0,01)+99=

=[26/7×(3/90−6/90−2/90)]/ (-0,01)+99=[26/7×(-5/90)]/ (-0,01)+99=

=[26/7×(-5/90)]/ (-0,01)+99= - 13/63×100+99= -1300/63+99=

= -1300/63 + 6237/63= 4937/63=78.(365079)









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