Respuesta :
x+14= 21
move +14 to the other side
sign changes from +14 to -14
need to get x by itself
x+14-14= 21-14
x=21-14
Answer:
x= 7
x+14= 21
move +14 to the other side
sign changes from +14 to -14
need to get x by itself
x+14-14= 21-14
x=21-14
Answer:
x= 7