Question

Is the inequality sometimes, always, or never true

-2(2x + 9)> -4x + 9

2. Solve the compound inequality. Graph the solution.

-2 <= 2x - 4 < 4

0 <= x < -2

1 <= x < 4

1 <= x < 0

3 <= x < 6

Answer 1

so solve -2(2x + 9)> -4x + 9 and find out :)

Answer 2

-2(2x + 9)> -4x + 9
-4x - 18 > -4x + 9

what do you think?

Answer 3

sometimes true idk honestly because this is my weakest part is inequalities

Answer 4

why not just solve it?

Answer 5

how would you solve say => -4x - 18 = -4x + 9

Answer 6

add 4x to both sides of the inequality

- what do you get?

Answer 7

-8x

Answer 8

the rules for inequalities are similar to those for equations

Answer 9

-4x + 4x = -8x????

Answer 10

nope

Answer 11

Oh no sorry x

Answer 12

-1 + 1 = 0
-2 + 2 = 0

-x + x = 0

Answer 13

-4x + 4x = ?

Answer 14

so it is always equal

Answer 15

it should be obvious - compare - 4x + 4x = 0

Answer 16

no go back to the inequality
-4x - 18 > -4x + 9

after adding 4x to both sides we get
-18 > + 9

is that correct??

Answer 17

yes

Answer 18

is -18 greater than + 9 ?

Answer 19

no

Answer 20

right so whats the answer to the original question

sometimes, never or always?

Answer 21

never

Answer 22

right

Answer 23

ok