Okay so lets look at what it says.
Opposite in the case of math almost always means negative. So (2(-n)+5)*2. This can be simplified to (-2n+5)*2 = 22 + n
Again, simplify it and its -4n+10 = 22 + n
Subtract 10 from both sides and its -4n = 12 + n
Add 4n to both sides and you get 0 = 12 + 5n
Subtract 12 from both sides and its 5n = -12.
Divided both sides by five and you have n = -12/5
