find the error Math
"Next I will use Cowling’s formula to calculate a child’s aged based on the 2/3 known variables in the formula. In this problem a in the unknown variable. I know that D=800mg and d=233mg. I will start my process of solving bysubstituting the letter with numbers:
Our goal in this problem is to isolate the a to get the age, thus we want to have a conditional equation to get the only possible answer for the unknown variable a. will start by multiplying by 24 on each side to simplify our problem thus eliminating the denominator.
By doing this we begin to isolate our unknown variable further. After the multiplication is completed we have:
Finally to completely isolate the unknown we must do the opposite of multiplication, division. I will divide both sides by 800.
a= 6.99. In this problem our child is 7yrs of age receiving 233 mg of medication."