SOLUTION: 7x+2x=8x-3

Question 212305: 7x+2x=8x-3
Found 2 solutions by rfer, rapaljer:
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
7x+2x=8x-3
9x-8x=-3
x=-3
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
7x +2x=8x-3

Combine like terms on the left side:
9x=8x-3

Next, get all the variable terms on one side. Let's go to the left side with variables by subtracting 8x from each side!

9x - 8x = 8x-8x-3
x=-3

If you need help with equation solving, please see my own website. You can do a "Bing" search for my last name "RAPALJE" and look for "Rapalje Homepage" which should be the first on the list. On my homepage, look for the link near the top of the page that says "Basic, Intermediate, and College Algebra: One Step at a Time". Choose "Basic Algebra" and look in "Chapter 1" for the section on "Equation Solving". It's my own explanation complete with examples and exercises (and answers of course!), explained for folks who are NOT good at math. Then see my "MATH IN LIVING COLOR" pages for additional solutions IN COLOR!

R^2

Dr. Robert J. Rapalje, Retired
Seminole Community College
Altamone Springs Campus
Florida
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