The lnl is an absolute number which basically means it's positive regardless
So now its 7n-7=14
Simply add the 7 to the 14 to get it off the 7n side so you can simplify
Now it's 7n=21
Now just divide
21/7=3
3=N
That means 7 times N=21
The answer is C to the question
6x-18
you pretty much h just multiply both the first part of the parentheses by the number outside, then the second :)
1 cm = 20 km
so 3.5 cm would equal : 3.5 * 20 = 70 km <==
Usual distance michiko runs= d miles
Time=t
normal speed= r₀
speed today= r₁
According to the question,
r₀= d/t
r₁= d+9/t+70.
