Answer:
x=13
Step-by-step explanation:
isolate the x by adding4 to each side of the equation
x - 4 = 9
+ 4 =+ 4
and then the -4 cancels out and you get x = 13
I hope this helps :)
13!
add 14 both sides you should add up to 13 from 9 + 4 and then 13 divided by 1
