Find the value of n in the solution to the system of equations shown.
please help.

Answer:
n = 5
Step-by-step explanation:
m = 2n + 7
m = 4n - 3 (Multiply by -1)
-m = -4n + 3
m = 2n + 7
0 = -2n + 10
-10 = -2n
n = 5