SOLUTION: I am a college student returning to classes after a 3 year break. I sure have forgotten a ton in the past three years! Here is my latest problem: How do I solve for X in this eq

Question 2805: I am a college student returning to classes after a 3 year break. I sure have forgotten a ton in the past three years! Here is my latest problem: How do I solve for X in this equation? Please show me the steps so I can repeat this type of problem. I feel so dunce! Thanks!
100X-4000/100X=.3
Answer by kiru_khandelwal(79) (Show Source): You can put this solution on YOUR website!
100x - 4000/100x = .3
=> (100x*100x - 4000)/100x = 3/10
=> 10000x^2 -4000 = 30x
1000x^2 -400 = 3x
1000x^2 -3x - 400 =0
Now u can find the roots of the equation by using the formulae
x =
RELATED QUESTIONS
Hello, I have been away from Algebra for 5 years and have completely forgotten... (answered by askmemath)

Instructions: Solve the following word problem. Be sure to show the equation you use for... (answered by checkley71,stanbon)

solve the equation: 3/x-5/=12 I am a home-schooled student and I am re-taking a class... (answered by ankor@dixie-net.com)

V=4/3*pi*r^3 Could I have the steps for solving for r^3? I need to get r^3 alone. And (answered by stanbon,Alan3354)

(2c + 3d)(7c - 2d) How is this solved? I am a returning college student x20 years... (answered by nerdybill)

I am an returning to college after a LONG hiatus from school.i encounted a problem in... (answered by MathLover1,ewatrrr)

|x^2+6x|=3x+18 I'm actually a college student trying to help my foreign exchange... (answered by Earlsdon)

When working with several different equations as a system such as below: 2X - Y + 4Z = (answered by checkley75)

-6(4-3x)-18+4 TRIED -(6)x4 -6(3x) - 18 + 4x -24 + 18x - 18 +4x now lost I am just (answered by longjonsilver)