Respuesta :
Answer:
Use x for your variable. Do not simplify
Step-by-step explanation:
Answer: Soooo----- x+(3x-13)
Step-by-step explanation:
So in this case i used x as number. Since we're not solving for anything this is just an expression. so the difference between triple the number so 3x and thirteen so (3x-13) and (a number) added so x+(3x-13) or number added to the difference between triple the number and thirteen