Question

( ) + (-7) = 0

( ) (2) = 1

(0.25) ( ) = -2

Ayudenme porfa​

Answer 1

Respuesta:

Ejercicio 1:

$(x)+(-7)=0$

$x=7$

---- Reemplazando ----

$(x)+(-7)=0$

$7-7=0$

$0=0$

Ejercicio 2:

$(x)(2)=1$

$x=\frac{1}{2}$

---- Reemplazando ----

$(x)(2)=1$

$(\frac{1}{2})(2)=1$

$1=1$

Ejercicio 3:

$(0.25)(x)=-2$

$x=-\frac{2}{0.25}$

---- Reemplazando ----

$(0.25)(x)=-2$

$(0.25)(-\frac{2}{0.25})=-2$

$-2=-2$