Answer:
n = -13
Step-by-step explanation:
38 = -2n + 12
Subtracting 12 from both sides:
==> 38 - 12 = -2n + 12 - 12
==> 26 = -2n
multiplying both sides by (-1):
==> -26 = 2n
dividing both sides by 2:
==> -13 = n
26 = -2n
n = 26 : (-2)
-----------------
check
38 = -2 * (-13) + 12
38 = 26 + 12
38 = 38
the answer is good
