Answer:
see below
Step-by-step explanation:
Put -1 where x is in each expression and evaluate it.
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You will find that the expression is zero when the numerator is zero. And you will find the numerator is zero when it has a factor that is equivalent to ...
(x +1)
Substituting x=-1 into this factor makes it be ...
(-1 +1) = 0
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Evaluating the first expression, we have ...

This first expression is one you want to "check."
You can see that the reason the expression is zero is that x+1 has a sum of zero. You can look for that same sum in the other expressions. (The tricky one is the one with the factor (x -(-1)). You know, of course, that -(-1) = +1.)
3000 ÷ 25 = 120
Check:
120(25) = 3000 <------------------True
I don't know how many boys are in the classroom?
The answers are P: (-4,3) Q: (4,-3)
Answer:
37 7/33 or 37.212
Step-by-step explanation:
6j + 23 + k/l - 3
If j = 3, k = 7, and l = 33:
6 × 3 + 23 + 7/33 - 3
= 18 + 22 + 7/33 - 3
= 40 + 7/33 - 3
= 40 7/33 - 3
NOTE: Because 40 and 3 are whole numbers, 3 will be subtracted from 40.
= 37 7/33 or 37.212