Question

Calcula “x .y”, si: (2x –1; 13) = (17; y + 9)
AYUDAA

Answer 1

Respuesta:

2x-1=13

2x=13+1

x=14/2

x=7

17=y+9

17-y=9

-y=9-17

-y=-(17-9)

-y=-8

-1(-y)=-1(-8)

y= 8