I need help with 18-19

Answer:
18-19= -1
Step-by-step explanation:
18-19=-1
Sweetheart, you cant subtract a smaller number from an bigger number or it will be a negitive number so the answer is -1
Answer:
18. p = 5
19. b = 8
Step-by-step explanation:
all you have to do is apply the inverse of the number being added to the variable to the other side of the equation to balance the equation. And if you are ever stuck there are great algebra calculators online. For example MathPapa. Good luck