Question

2-(-3) -5 +4.(-5) =
2-(-15) + (-28) =
2 +(+15) + (-28) =
(+17) + (-28) =


ayuden xfas​

Answer 1

Respuesta:

Explicación paso a paso:

$a)2-\left(-3\right)\:-5\:+4\times \left(-5\right)\:=\\\\2-\left(-3\right)-5-20\\\\-20\\\\b)2-\left(-15\right)\:+\:\left(-28\right)\:=\\\\2+15+\left(-28\right)\\\\17+\left(-28\right)\\\\17-28\\\\-11\\\\c)2\:+\left(+15\right)\:+\:\left(-28\right)\:=\\\\17+\left(-28\right)\\\\17-28\\\\-11\\\\d)\left(+17\right)\:+\:\left(-28\right)\:=\\\\17-28\\\\-11$