Answer:Basically, just do the PEMDAS rule to which these acronym should be in orderP - arenthesisE - xponentM - ultiplicationD - ivisionA - dditionS - ubtraction25 - 5 (16-12) ÷2First step : Look at the numbers inside the parenthesis to which 16 is subtracted to 12 so the answer is 425-5(4)÷2Second step : After subtracting the numbers inside the parenthesis, we should divide 4 by 2 so the answer is 225-5(2)Third step : So now we have 2 as the answer, the next step is to multiply 5 by 2 so the answer is 1025-10Fourth step : this is the last step so we just have to subtract both numbers so the answer is 1525-5(16-12)÷2 =15Step-by-step explanation:Hope this helped :D