Explain how to isolate the variable in the equation - 2/3n + 7 = 15

n = - 12

Step-by-step explanation:

(-2/3) n + 7 = 15

(-2/3) n+7-7 = 15-7 Subtract by 7 on both sides

(-2/3) n = 8 Multiply by the reciprocal of the fraction, which is

(-2/3) n * (-3/2) = 8 (-3/2) This makes it so you get n * 1 and isolates n.

n = - 24/2 = - 12