I don't knwo how to solve this can someone help me please.
x+2x square root of 2 = 60
Because it's hard to read that format of math, I'll have to assume the equation is:
$\displaystyle x+2x\sqrt{2}=60$
I hope I'm right. If so, then first, I would factor the x:
$\displaystyle x(1+2\sqrt{2})=60$
Then, divide by the $\displaystyle (1+2\sqrt{2})$ to get:
$\displaystyle x=\frac{60}{1+2\sqrt{2}}$