Question

Resolver [(-7)+(-5)(-5)(-2)+1]-(-20)​

Answer 1

Respuesta:

=[(-7)+(-5)(-5)(-2)+1]-(-20)

= [ (-7)+ (25)(-2)+1] + 20

= [ (-7)+ (-50)+1 ] + 20

= [ -7-50+1 ] + 20

= (-57+1) + 20

= -56+20

= -36

Explicación paso a paso:

•Recuerda la ley de signos:

(+) × (+) = (+)

(-) × (-) = (+)

(+) × (-) = (-)

(-) × (+) = (-)