Why does my nose hurt when i wear my mask, it hurts badly that im about to cry. and i cant take it off bc im in school

Your nose hurts when you wear your mask maybe because the mask itches you or when you wear the mask and you don't breathe fresh airwearing of mask may make you to breathe in too much carbon dioxide instead of oxygen or maybe when you put your mask on for too long the air coming out from yiur nose is going to be heated or feel heated so breathing it in again and again may be painful especially if you have a sensitive nose... you can either bring your face mask a little bit down or you can inform your parents or doctor about it

(-2,3)

Step-by-step explanation:

Doing it the way you did and working out the problem you substituted 3 into, x+3(3)=7, 3(3) is 9 and then you subtract 9 from both sides.

7-9=-2

x=-2

Then all you have to do is put it into ordered pairs.

(x,y)

(-2,3)