How do you solve x= 3- x \sqrt { 2}?

1 Answer
Dec 14, 2017

x=3/(1+sqrt2)

Explanation:

Solving equations is the isolation of the variable:

Since we already have x on the left side, leave it that way.

Add xsqrt2 to both sides to get x+xsqrt2=3

The left hand side can be simplified by taking a factor of x out:

(1+sqrt2)x=3

Now just divide both sides by (1+sqrt2)

Therefore, x=3/(1+sqrt2)