Enter Equation or Inequality

Solve the following equation

10n-72=-2

Solve for n

10n - 72 = - 2

Divide each side by 10

10n
10
=
  
-72
10

Group constants

Group our constants -72 and -2.
add 72 to both sides

10n - 72 + 72 = -2 + 72

Cancel 72 on the left side:

10n = 70

Divide each side of the equation by 10

10n
10
=
  
70
10

n = 7

Final Answer


n = 7