Seems easy, but...I want to be sure I am using the correct order

Thanks

C

Tutors, sign in to answer this question.

Sky W. | Patient and Knowledgeable Math TutorPatient and Knowledgeable Math Tutor

3x-4(2x+5)=-16 +13x

1.remove parentheses 3x-8x-20=-16+13x

-5x-20=-16+13x 2. add 5x to both sides get -20=-16+18x

3. add 16 to both sides get -4=18x

4. divide by 18 get -4/18=-2/9=x

David M. | Math Tutor in Many Areas.Math Tutor in Many Areas.

Hanna W. | Hanna--Math, Economics, GeographyHanna--Math, Economics, Geography

3x-4(2x+5)=-16+13x

You have to first multiply 2x+5 by -4 before you can begin combining the other terms.

-4*(2x+5)=-8x-20 so...

3x-8x-20=-5x-20=-16+13x

then add 16 to both sides and add 5x to both sides

-5x+5x-20+16=-16+16+13x+5x

-20+16=13x+5x

-4=18x

divide both sides by 18

-4/18=18x/18=x

-2/9=x

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.