wdhigh2442
wdhigh2442 wdhigh2442
  • 11-12-2016
  • Mathematics
contestada

Solve for x

[tex] \frac{a}{x} + \frac{b}{c} = \frac{a}{b+c} [/tex]

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 11-12-2016
easy
make denomenators the same

Step 1
multiply both sidesby (x)(c)(b+c)
(a)(c)(b+c)+(b)(x)(b+c)=(a)(x)(c)

Step 2
distribute
acb+ac²+xb²+bxc=axc

Step 3
minus (acb+ac²) from both sides
xb²+bxc=axc-acb-ac²

Step 4
minus axc from both sides
xb²+bxc-axc=-acb-ac²

Step 5
undistribute x
x(b²+bc-ac)=-acb-ac²

Step 6
divide both sides by (b²+bc-ac)
[tex]x= \frac{-acb-ac^2}{b^2+bc-ac} =\frac{acb+ac^2}{ac-b^2-bc}[/tex]
Answer Link

Otras preguntas

effects of tobacco on the human body include:
At his job at the dairy, Rick distributes 2,345 containers of yogurt into 5 equal rows along a conveyor belt. How many containers of yogurt are in each row on
Why do you think it's important to have a waterway that connects the Midwest and Atlantic Ocean?
you sprained your ankle and are told to take ibuprofen to reduce the inflammation. what is the mechanism of action for this drug?
Jewel's score was 5 over par on the first 9 holes. Her score was 4 under par on the second 9 holes.
Write each fraction or mixed number as a decimal 14 3/5
what is (x^3)^2 without exponents
Suppose you and a partner want to make a recipe for 25 friends. Adjust the amount of each ingredient below to 25 servings. Facts: *25 friends Recipe for 100 ser
so 4 as a fraction 9
what is the range of 12,8,17,12,15,18,30