Respuesta :

yolandaam
The simplest way to find this number is to add your two known values (7 and 6) which should be 13. Now you should subtract it from 18. (18-13). That should equal to 5, which is your answer.
razethetower
6(x+7)=18
6x+42=18
6x=-24
x=-4

Otras preguntas