what is solution to the inequality 12<3x-15

a) {x:x<-1}

b) {x:x<9}

c) {x:x>-1}

d) {x:x>9}

what is solution to the inequality 12<3x-15

a) {x:x<-1}

b) {x:x<9}

c) {x:x>-1}

d) {x:x>9}

Tutors, sign in to answer this question.

Mykola V. | Math Tutor - Patient and ExperiencedMath Tutor - Patient and Experienced

In order to solve this inequality, we simply need to solve for x.

This case would look as follows:

12<3x-15. Add 15 to each side

12+15<3x-15+15 => 27<3x. Divide each side by 3.

27/3<3x/3 => 9<x.

Our work is done. So what we have is any value of x greater than 9 will satisfy the inequality.

Answer: D.

x is 9; it is = to 9; not less and not more than 9.

Already have an account? Log in

By signing up, I agree to Wyzant’s terms of use and privacy policy.

Or

To present the tutors that are the best fit for you, we’ll need your ZIP code.

Your Facebook email address is associated with a Wyzant tutor account. Please use a different email address to create a new student account.

Good news! It looks like you already have an account registered with the email address **you provided**.

It looks like this is your first time here. Welcome!

To present the tutors that are the best fit for you, we’ll need your ZIP code.

Please try again, our system had a problem processing your request.

## Comments

I want to add that solving inequality follows the same rules as solwing equations with one exeption:

You can add the same number to both sides of inequality.

You can subtract the same number from both sides of inequality.

You can multiply or divide both sides of inequality by the same

positivenumber.Exeption: You can multiply or divide both sides of inequality by the same

negativenumber but you have toswich inequality sign to the opposite.Yes, that is a good point. I thought about explaining that. Thank you.