Can anybody help me solve -np - 90 < 30
What do you need help solving. Treat is as if it was a regular equation. Pretend there is a = sign there.
Can you solve then? Remember anytime you divide by a negative number, you switch the sign (in the end)
I have to solve for n
The question says - Solve. -np - 90 < 30 for n.
So, pretend you have: -np - 90 = 30 can you solve for n now?
How do I get the variable p to the other side
Divide.
It wouldn't be any different if there was a number on there. Same proceduce.
So I would have -n - 90 < 30/p ?
No. First, add 90 to both sides, as i told you to do so earlier. That way, you isolate the -np by itself.
Then you have: \(\sf \color{red}{-np < 30 + 90}\)
So now I have -np < 120
Next divide by \(\sf \sf \color{red}{-p}\) remeber i said when you divide by a negative number, you re actually flipping the sign of the inequality.
And you've solved for it.
So -n>120/p is the answer?
Can you also help me with 5m - 3h = 45
No. you cannot have a negative answer, it must be positive! It wouldn't make sense to say a negative number is greater than a positive, assuming p > 0
5m-3h = 45 what are you solving for?
You need to be clear with your questions!
Don't worry bout it don't need help👋🏽
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