Answer:
x-1=0 x=1
x+1=0 x= -1
x+5=0 x= -5
Step-by-step explanation:
Answer:
Jackie runs for
minutes and dances for
minutes.
Step-by-step explanation:
Let the time she dances be
and the time she runs for be
minutes respectively.

Use the substitution method here ,

Therefore Jackie runs for
minutes and dances for
minutes.
Answer:
x equals 13
10 + x = 23
x=23-10
Step-by-step explanation:
A cheerful teen willing to help,
stay salty,
be positive...
Answer:
A.
Step-by-step explanation:
The answer would be a because if you have s + 11 you will get 23
but if you were to find s it would be 12