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afla numarul necunoscut : (200-a)-111=89. b-428+86=104. c:3-124=192. 754-d×4=390
Va rog frumos , dau coronita !!!! Repede va rog


Răspuns :

a = 0
b = 456
c = 1098
d = 90
(200-a)-111=89
a=200-111-89
a=0
200-0-111=89

b-428+86=104
b=428-86+104
b=446
446-428+86=104

c:3-124=192
c=(124+192)×3
c=316×3
c=948
948:3-124=192


754-d×4=390
d=(754-390):4
d=364:4
d=91
754-91x4=754-364=390