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Aflati termenul necunoscut din :
a) x+1237 =2000
b) x-154 =1732
c) 457-x=104
d) 349+x=743


Răspuns :

a) x+1237=2000
    x=2000-1237
    x=763
b) x-154=1732
    x=1732+154
    x=1886
c) 457-x=104
    x=457-104
    x=353
d) 349+x=743
    x=743-349
    x=394
a) x+1237=2000
x=2000-1237
x=763
b) x-154=1732
x=1732+154
x=1886
c) 457-x=104
x=457-104
x=353
d) 349+x=743
x=743-349
x=394