n - 10 + 9n - 3 n + 9n - 10 - 3 10n - 13
n-10+(9n-3)=10n-13
n - 10 + 9n - 3 = 10n - 13
9n+6-3n
9n + 12y = 3(3n + 4y)
n2 + 9n + 18 = (n + 6)(n + 3)
The equation N-10 plus 9N-e equals 10N-3. This is a math problem.
-26
it is 10n
Strangely enough, it is 9n + 1 for n = 1, 2, 3, ...
9n + 4 = 31 (given)9n = 27 (subtract 4 from both sides)n = 3 (divide both sides by 9)
To make a 9N (normal) Phosphoric Acid solution, you will need to know the concentration of your Phosphoric Acid. The formula to calculate the volume of Phosphoric Acid required is: Volume (in liters) = (Desired Normality * Equivalent Weight of Phosphoric Acid * Volume of Solution) / Concentration of Phosphoric Acid.