3+x=7 What does variable represent?

an unknown number by the way the answer is 4 too.

good morning here is your answer,

3+x=7

or, x= 7-3

or, x= 4

step-by-step explanation:

. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.

step- i d k and i d c : )

you: : 0

bye