Solving inequalities( need help checking my answer)

Step 1. You need x isolated.
[tex]x < 13+7[/tex]
When you move a number from the left to right (and its addition or subtraction, the sign stays (< ≤ > and ≥ is signs).
x<20 or in words, x is less than 20, and cannot be 20.
Answer:
x < 20
Any number less than 20 is a solution
Step-by-step explanation:
x-7 < 13
The first step to solve this inequality is to add 7 to each side
x-7+7 < 13+7
x < 20
Any number less than 20 is a solution