How do you solve x+ 1/x = 10/3?

1 Answer
May 17, 2016

Put on a common denominator

Explanation:

(x xx x xx 3)/(3x) + (1 xx 3)/(3x) = (10 xx x)/3

Multiply and then you can clear the denominators and solve like a regular quadratic equation.

3x^2 + 3 = 10x

3x^2 - 10x + 3 = 0

3x^2 - 9x - x + 3 = 0

3x(x - 3) - 1(x - 3) = 0

(3x - 1)(x - 3) = 0

x = 1/3 and 3

With rational equations, it's also important to note the restrictions on the variable.

There will be restrictions when the denominator is equal to 0, since in math division by 0 is undefined.

Therefore, x!=0

To summarize, x = 1/3 and 3, x!=0

Hopefully this helps!