Answer:
Let's give names to the all sides a=6 , b=9 and c=?
Third sides of an triangle is determined by the following double inequality, in this case b>a => b-a < c < b+a => 9-6 < c < 9+6 =>
3 < c < 15 => c belongs to the interval (3,15), let's take c=4, if we check for example side b => a>c => a-c < b < a=c => 6-4 < 9 < 6+4 =>
2 < 9 < 10 , inequality is true.
2 + x < 29
the answer.......
here,x=123, is the answer.
7n-6=-20
Step-by-step explanation:
six less than seven times a number
we'll use n as "the number"
six less meaning -6
7 times a number n = 7n
