Answer:
7n + 3 = 2n + 23
3 + 7n = 2n + 23
3 + 7n = 23 + 2n
3 + 7n + -2n = 23 + 2n + -2n
3 + 5n = 23 + 2n + -2n
3 + 5n = 23 + 0
3 + 5n = 23
3 + -3 + 5n = 23 + -3
3 + -3 = 0
0 + 5n = 23 + -3
5n = 23 + -3
5n = 20
n = 4
Step-by-step explanation:
answer:N=4
