Answer:
-1 + 2 = 1
1 + (-2) = -1
-1 - 2 = -3
1 - (-2) = 3
Step-by-step explanation
When you subtract use keep change change
Rule 1 when you add : If the signs are the same add the numbers and take the sign of the bigger number.
Rule 2 when you add : If the signs are different subtract the numbers and take the sign of the bigger number.
I wanted to help you understand and i hope i did that!
Because there's one 3 & four 7's .
Because there are two 2's & four 9's
-10-40n-8
-18-40n
2(-9-20n)
Answer: A
Step-by-step explanation:
because i did a quiz with the same and i got it right
Multiply 32X 9 = 288kg
they asked you to convert the kilograms to grams so divide the 288kg by a 1000= 0.288grams
