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Ganeadaniela80
a fost răspuns

x+21= 35,3 ; 3x+1<32,02 in N

Răspuns :

Nitugheorghe57
x+21=35.3⇒x=35.3-21⇒x=14.3
3x+1<32.02∈N⇒3x<32.02-1⇒3x<31.02⇒x<31.02/3⇒x<10.34x∈N
X∈{0.1.23.4.5.6.7.8.9.10}