Answer:
a=0 or a=2
Hope it helped!
I think it's 4.89897948557
Step-by-step explanation:
Good morning,
5+(-4) = 5 - 4 = 1
-4 + (-7) = -(4+7) = -11
since 1 > -11 then 5+(-4) > -4 + (-7)
:)