42 +(6-2)*5=2
How do I solve

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle