plz help me will mark brainlest 1 hour and two or more have to answer must get every one correctt and must answer all three

Page one step two=. 5x=15
page one step three=. 5x/5=15/5
page one step four=. x=3

page two step one=. 6n+3-3=9-3
page two step two=. 6n=6
page two step three=. n=1

page three step one=. m/3+4-4=7-4
page three step two=. m/3=3
page three step three=. m/3*3=4*3
page three step four=. m=9

Absolute value graph shifted point 5 up