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Chiseneli
a fost răspuns

A) x + 5 < 9 ; B) x + 1997 < 2000 ; C) 182 - 153 > x + 19 ; D) 1217 + x < 1221 ; E) x - 2 < 5 ; Ps.) Cine ma ajuta ii dau coroana

Răspuns :

x+5<9 => x<4
x+1997<2000 => x<2000-1997 => x<3
182-153>x+19 => 29> x+19 => 10>x
1217+x<1221 => x<1221-1271 => x<4
x-2 <5 => x<3

Concluzie : x< 3

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