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Rezolvati in R inecuatia
D)5-4(2x+3)>1-2(3x-7)
F)12x-(x+4)<-3-(x -2)


Răspuns :

5-8x-12 > 1 - 6x +14 -8x -7 > -6X + 15 -8x + 6x > 15 +7 -2x > 22 | ÷ ( - 2 ) X < 11 F ) 12x -X -4 < -3-X + 2 11 X - 4 < -X -1 11x + X < -1 +4 12x < 3 X < 3 \ 12
D)5-4(2x+3)>1-2(3x-7)
5-8x+12>1-6x+14
17-15>8x-6x
2>2x
x<1
x∈{-∞,0}
F)12x-(x+4)<-3-(x -2)
12x-x-4<-3-x+2
12x<-3+2+4
12x<3
x<12/3
x<4
x∈{-∞,3}