a fost răspuns

Rezolvati in Z inecuatiile:
3(x+4)-4(x-5)<30
2(3x+7)+5(1-6x)>sau egal 19
3[6-(x+2) x 5]-8(x-1)<sau egal 50(3-x)+8
19x-[12+4(1-2x)-5(4+6x)] : 2> 116 

Răspuns :

Marianmarian12ask
3(x+4)-4(x-5)>30<=>3x+12-4x+20>30<=>-x+32>30<=>(asta e echivalent)-x>30-32<=>-x>-2

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