Hello from MrBillDoesMath!
Answer:
n = 5
Discussion:
-19 - 7n = -6(n+4) => Given
-19 -7n = -6n + (-6)(4) =>
-19- 7n = -6n - 24 => Add 6n to both sides
-19 -7n + 6n = (6n -6n) - 24 =>
-19 -n = 0 -24 => Add n to both sides
-19 (-n +n) = n - 24 => Add 24 to both sides
(-19 +24) + 0 = n =>
+5 = n
Regards,
MrB
