if triangle MNO is an acute triangle and MN=x-1, NO=x+1, and MO=8, then what are the possible solutions of x?

Answer 1

well, MN+NO>MO
x-1+x>8
2x>9
so any x greater than 4.5 is a possible solution. Check my thinking.

Answer 2

x>4
x-1+x+1>8, 2x>8, x>4
Someone check my thinking