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Delia2001
a fost răspuns

Rezolvati ecuatia : 8+9(x+10)+11(x+12)>2(3x-4)+2x-9-3(6x+7)

Răspuns :

Coolirinuta
8+9*(x+10)+11*(x+12)-(2*(3*x-4)+2*x-9-3*(6*x+7))>0 
20x+230 - 10x-38 simpleficam
30x + 268  =   2 • (15x + 134) 
2 • (15x + 134) > 0
 15x+134  > 0
 x+(134/15)  > 0
x > -134/15

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