Question

(-13+15)-(3+2) divided by 6-12

Answer 1

Had a sign wrong:
\[(-13+15)-(3+2) = 2 -5 = -3\]
\[6-12 = -6\]
\[\frac{ -3 }{ -6 } = \frac{ 1 }{ 2 }\]

Answer 2

you might want to resolve your numerator first
resolve your denominator
then apply division

Answer 3

why are you giving out answers, @DDCamp ?
why????