Question

Solve for x: 10x + 5 > 5
A. x = 10
B. x > 0
C. x < -1
D. x > 20

Answer 1

can anyone help

Answer 2

Yes.

Answer 3

Basically what the question is asking is what is going to be bigger than 5 once you solve the equation, so can you eliminate any answers that are not bigger than 5?

Answer 4

c?

Answer 5

10(-1) + 5 = ?

Answer 6

Can you answer that?

Answer 7

14?

Answer 8

So that's bigger than 5.

Answer 9

You know now that that is a possible answer.

Answer 10

It's asking for what values of x is the left side bigger than the right side?

Answer 11

Basically. Try plugging in numbers and see which one works.

Answer 12

10x + 5 > 5 (subtract 5 from both sides)
10x + 5 - 5 > 5 - 5
10x = 0
x = 0/10 = 0

Answer 13

Does that work for the equation?

Answer 14

It doesn't seem to fit the equation...but that is how to do an inequality.
You solve an inequality kind of like an equation. Except there are some rules...
one of which is you can subtract/add anything to both sides as long as they are the same number...doesn't matter if it is negative or positive. (which I did) If this is done it does not change the inequality sign.Also if you divide by a positive number the inequality sign does not change. I can't see anything that I did wrong, however, the inequality doesn't seem to make sense....
10x + 5 > 5
10 (0) + 5 > 5
0 + 5 > 5
5 > 5 (doesn't make sense ???)

Answer 15

It ends up with 10x > 0
so x > 0!