Question

:3
(-4) + (+5) – (-7) + (-3) – (+6) =
(-5) + (+8) – (-13) – (+9) =
(+23) – (-14) – (+23) + (-15) =
(-7) + (+9) – (-17) – (+12) =
(+24) – (-17) – (+32) + (-25) =

Answer 1

Respuesta:

(-4) + (+5) – (-7) + (-3) – (+6) =

=1−(−7)+(−3)−(+6)=  

=8+(−3)−(+6)=

=5−(+6)=

=−1

(-5) + (+8) – (-13) – (+9) =

=3−(−13)−(+9)=  

=16−(+9)=

=7

(+23) – (-14) – (+23) + (-15) =

=37−(+23)+(−15)=  

=14+(−15)=

=−1

(-7) + (+9) – (-17) – (+12) =

=2−(−17)−(+12)=

=19−(+12)=

=7

(+24) – (-17) – (+32) + (-25) =

=41−(+32)+(−25)=  

=9+(−25)=

=−16