Question

cineva care vrea sa ma ajute si pemn la ex 8 si 9 doar d,e si f daca doriti ma puteti ajuta si la a,b si c dar imi trebuie neapărat va rog​

Answer 1

8. d)

$24 \leqslant 4x = > x \geqslant 6 = > x = {6, 7, 8, ...}$

e)

$30> 6x = > x < 5 = > x = {4, 3, 2, ...}$

f)

$35 \leqslant 7x = > x \geqslant 5 = > x = 5, 6, 7, ...$

9

d)

$20 - 8x \geqslant 40 - 3x = > - 20 \geqslant 5x = > x \leqslant - 4 = > x = - 4, - 5, - 6, ...$

e)

$24 - 3x < 60 + 6x = > - 36 < 9x = > x > - 4 = > x = - 3, - 2, - 1, ...$

f)

$75 - 15x > 40 - 8x = > 35 > 7x = > x < 5 = > x = 4, 3, 2, ...$