Answer:
x < 9
Step-by-step explanation:
x + 4 < 13
Solve
__________
To solve, all we need to do is isolate x :
Subtract 4 from both sides :
Answer: X < 9
So something + 4 is less than 13
You do 13 - 4 which is 9
So something (x) is smaller than 9
