Question

Calcule x-y:

a)x=+6 e y=+5
b)x=-7 e y=+8
c)x=-9 e y=-5
d)x=+12 e y=-15

Answer 1

a)+6 - +5=1
b)-7 - (+8)= -7-8 =-15
c)-9 - (-5)= -9+5 =-4
d) 12-(-15)=12+15=27

espero ajudar ♥