Answer:
x = all real values
Step-by-step explanation:
3(2x -5) = 6x -15
Distribute
3*2x - 3*5 = 6x-15
6x -15 = 6x -15
Subtract 6x from each side
6x-15-6x = 6x-15-6x
-15 = -15
This is always true so there are infinite solutions
x = all real values
Look at the picture. The only integer numbers meeting the given condition are 0,1,2,3.
So
Answer
4. - x ^ 2 + 13x - 42 <= 0524211r
5. x ^ 2 - 11x - 42 < 0
16 - x ^ 2 + 9x - 8 <= 0
17. x^ 2 -11x+80<0
18. - x ^ 2 + 3x + 4 <= 0
19. x ^ 2 - 12x + 36 <= 0
20. 2x ^ 2 - 32x + 56 < 0
21. x ^ 2 - 10x - 96 < 0