Решите неравенства:

1) (2/13)^7x+3 ≥ (2/13)^4-x

2) 9^4+3x < (1/27)^6-x

1) (2/13)^7x+3 ≥ (2/13)^4-x7x+3≤4-x7x+x≤4-38x≤1x≤1/8x∈(-∞;1/8] 2) 9^4+3x < (1/27)^6-x 3^(8+6x)<3^(-18+3x)8+6x<-18+3x6x-3x<-18-83x<-26x<-26/3x∈(-∞;-36/3)