Question

For the following inequalities, make sure to use the correct sign with your answer. Examples: x>3, 75. Solve: 3(2x -4) - 4x + 7 < 9

Answer 1

Well we have

3(2x - 4) - 4x + 7 < 9

first...distribute that 3

Answer 2

so it will be 6x-12-4x+7<9

Answer 3

right

now combine your like terms

6x - 4x = ...?

-12 + 7 = ...?

Answer 4

2x
-5

Answer 5

right...so together we have

2x - 5 < 9

what next?

Answer 6

subtract 5 from both sides
which will give me
2x<4

Answer 7

not quite....since you want to get rid of that 5 on the left side you want to ADD 5 right?

if you subtract 5 you have

2x - 5 < 9
-5 -5

2x - 10 < 4

right?

so we need to do the OPPOSITE of subtraction...which is addition

2x - 5 < 9
+5 +5

2x < 14

and finally x < ...?

Answer 8

sorry I get x<7

Answer 9

no problem...and yes that is correct!

Answer 10

now that we've got that done crate a Skype My name is jasmine_ramos30 make sure you add me as a contact

Answer 11

lol must I really!?

Answer 12

yes because you can help me when i have questions and i don't have to ask my online teachers these dumb questions that i'm asking you and my nam is spelt j-a-z-m-i-n-e_r-a-m-o-s then 30