Its PEMDAS, just like how my great 5th grade teacher taught us students.
PEMDAS=parentheses () exponents x^y multiplication * division / addition + and subtraction -
since addition and subtraction work in a similar way, all you need to do is work out the problem from beginning to end
so like=
-5+8=3
3-7=-4
-4-13=-17
-17+2=15
15+9=-6
and -6 is your answer
You shall work it out by Pemdas!
if you want the answer cuz you are too lazy to figure it out yourself:
-5+8-7-13+2+9=-6
There is no working out - not really - it is just addition.
The minus signs belong to the number that follows it and they are all just added together.
-5+8-7-13+2+9
=3-7-13+2+9
=-4-13+2+9
=-17+2+9
=-15+9
=-6
OR you could look at how to put the numbers together so that it is a little easier.
-5+8-7-13+2+9
=-5+19-20
=-5-1
=-6
Its PEMDAS, just like how my great 5th grade teacher taught us students.
PEMDAS=parentheses () exponents x^y multiplication * division / addition + and subtraction -
since addition and subtraction work in a similar way, all you need to do is work out the problem from beginning to end
so like=
-5+8=3
3-7=-4
-4-13=-17
-17+2=15
15+9=-6
and -6 is your answer