Question

Check my work?

-14x - 7(4 - x) <3(2x - 15)

-14x - 28 - 7x < 6x - 45

-21x - 28 < 6x - 45

-21x + 21x - 28 < 6x + 21x - 45

-28 < 27x - 45

-28 + 45 < 27x - 45 + 45

17 < 27x

17/27 < 27/x

17/27 < x

Answer 1

you have made a mistake in the expansion of:

- 7(4 - x)

remember that two minuses make a plus.

Answer 2

-number multiply by a negative number makes positive @karldwalsh

Answer 3

- 7(4 - x)
= -28 +7x

Answer 4

a(b - c) = ab - ac

-a(b - c) = -ab + ac [because (-a) times (-c) equals ac]