Hey there!
Guide #1:
• The word “sum” means “add” or “total” especially in mathematics.
Guide #2:
• Negative & negative = Positive
• Positive & negative = Negative
• Positive & positive = Positive
• Negative & positive = Negative
Guide #3:
• Positives are on the RIGHT side of the number line
• Negatives are on the LEFT side of the number line
Guide #4:
• Negatives are BELOW zero
• Positives are ABOVE zero
Side note:
• Now that we have those guides out of the way we can answer your given question.
Random fact:
• We are ADDING -75 & 105 from each other.
Solving:
• Usually, the result takes the value of the BIGGER answer so this means that your result will be a positive because 105 is positive & it is bigger
• You start from -75 and you go UP 105 spaces to your RIGHT and that will be your answer
° -75 + 105
° = 30
Therefore, your answer is: 30
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)