Answer:
x = 4
Step-by-step explanation:
x=4
3x-3=9
+3=+3
3x=12
divide both sides by 3
leaving x by itself
12/3=4
254 miles
yes
It is definitely linear
x=7, y=16
2x+5=x+12
2x=x+7
x=7
y-4=x+5
y-4=12
y=16
