Question 183879
43-(-12)= 43 + 12 = 55


-12+(-5)-3-(-8)
-12-5-3+8
-17-3+8
-20+8
-12


{{{(-4)^2 -6^2}}}
{{{16-36}}}
{{{-20}}}


That's enough for one question!! Post the rest in another question.


R^2