Answer:
7
2n + 3n + 4n. = 63
9n = 63
n = 63/9
n = 7
hope it helps
n=7
Step-by-step explanation:
add 2n+3n+4n, which gives 9n =63
Divide by 9 on both sides, 9n/9 =63/9
If you need to confirm that's the right answer, just plug 7 back as n
2(7)+3(7)+4(7)=63
14+21+28 =63
63=63
