Помогите!!Решите систему неравенств.,.,.{5х+7>0,2х-3>0;;;,,,,,,,,,,,,{3х-5<0,7х+28<0,,,,,,;{18х-6<0,15-3х<0
Анюта3
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x+x+x/2+x/4+1=100
4x+4x+2x+x+4=400
11x=396
x=36
4x - 6*2x + 8 = 0
4x - 12x + 8 = 0
4x - 12x = -8
-8x = -8
X = 1
0 + 3/13 + ( - 9/13) =
= 3/13 - 9/13 = - 6/13