9th grade algebra math help?

Question

the subject is adding and subtracting real numbers:

Evaluate the expression n+(-5) for each value of n.

n=312

n=5.75

n=-7 over 12

n=-7 and 2 fifths

I am not asking for answers!!!

i just want help on how to evaluate the problems.

thank you so much!

10 points for ya

Answer 1

you are substituting n for all the above numbers



312 + (-5) which means 312 minus 5

5.75+ (-5) which means 5.75 minus 5

-7/12 +(-5) which means: -7 divided by 12 minus 5

7 2/5 + (-5) you would have to first turn the fraction into an improper fraction, then put five over one and add across :

19/5 + 5/1 =  

Answer 2

all you do is put the value of n into the equation, and subtract 5. If you REALLY don't want to know the answers, then DON'T scroll down...

307

0.75

-67/12

-62/5

Answer 3

312+(-5)

5.75+(-5)

-7/12+(-5)

-7 2/5+(-5)

PS: " +(-5) " just means minus 5

So basically:

312-5

5.75-5

-7/12-5

-7 2/5-5