Question

answer the question...
That's hard maths question!
help me guys
truly need your help!​

Answer 1

Answer:

• 7 – (-5) = 7 + 5 = 12 (a. Change double negatives to positive, use integer addition rules)
• –5 – 9 = -14 (using the signs in front of the numbers, use only addition rules-signs are alike, add and keep the sign)
• 6 – 7 = -1 (using the signs in front of the numbers, use addition rules-signs are different, subtract and take the sign of the largest numeral)