How to solve 3n+9=7n-15

Question

Mathematics

Answered

How to solve 3n+9=7n-15

Sagot :

ID Other Questions

China Was Divided Into Areas Of Foreign Economic Control Which Were Known As

There Is A Balanced scale. On One Side Of The Scale There Are 5 Spheres And 1 Cube. On The Other Side Of The Scale There Is 2 Spheres And 3 Cubes. The Question

Emma Had 16 Sweets. She Wanted To Give Some To Lily And Emily. If The Sweets Included Peanuts And The Friends Were Allergic, What Would Happen To Emma If She Fe

Mr. Coletti Made A Large Bowl Of Chocolate Pudding. The Pudding Weighed 4 1/3 Pounds. If He Served Equal Portions Of 1/6 Pound To Each Of His Guests And There W

In Roots, ___ Increase The Surface Area Through Which Water And Minerals Can Diffuse. (1 Point)

How Does The Cell Membrane Support Cells In Getting Needed Nutrients

Which Word In The Sentence Is The Predicate Nominative? A Seahorse Is A Fish With A Long Snout And Tail. A. snout B. seahorse C. tail D. fish

What Is The Charge On Pb In Pb(SO3)2

Is 74 Inches Greater Or Less Than 2 Yards 2 Inches?

Which Statement Describes The Views Of Some Who Opposed Al Smith In 1928? A. The President Must Support The Goals Of Organized Labor. B. Immigrants Should Not

Karkar99id Karkar99id · Answer 1

Karkar99id Karkar99id

Simplifying 3n + 9 = 7n + -15
9 + 3n = 7n + -15
9 + 3n = -15 + 7n
9 + 3n = -15 + 7n

9 + 3n + -7n = -15 + 7n + -7n
3n + -7n = -4n 9 + -4n = -15 + 7n + -7n
7n + -7n = 0 9 + -4n = -15 + 0 9 + -4n = -15
9 + -9 + -4n = -15 + -9
9 + -9 = 0 0 + -4n = -15 + -9 -4n = -15 + -9
-15 + -9 = -24 -4n = -24
Divide each side by -4
n = 6

Answer Link

Balkwill98id Balkwill98id · Answer 2

Balkwill98id Balkwill98id

The answer to this problem is 6

Answer Link