Question

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Answer 1

a)

3x - 12≤ 0

3x ≤ 12

x ≤ 4

b)

5(-x+1) + 2(3x-4) >-1

-5x + 5 + 6x - 8>-1

x > -1 -5 + 8

x > 2

c)

$\frac{-x+3}{2} < \frac{2x+5}{3}$

3 . (-x+3) < 2 . (2x+5)

-3x + 9 < 4x + 10

9 - 10 < 4x + 3x

1 < 7x

x > $\frac{1}{7}$