Question

quanto e:
(-3-8-10) + (+15+16)=

(-10+10-8) + (13+26)=

​

Answer 1

a) ( -3-8-10) + ( 15+ 16) = x
-21 + 31 = x
10 = x

b) (-10+10-8) + (13+ 26) = x
-8 + 39 = x
31 = x