Question

me ajudaaaaaaaaa me mostrem os calculos​

Answer 1

a) ((-15)+4) + (-18 + (-3-7+5) =

-11 + (-5) + -18 = -34

b) -2 + -13 = -15

Answer 2

A) (-15+4) + [-18 + (-3-7+5)]

(-11)+[-18+(-5)]

-11+[-18-5]

-11-23

-34

C)-1 + (-2+5) + [-4 + (-6+5-8)]

-1 + (3) + [-4+(-9)]

-1+3+[-13]

-1+3-13

-11