Answer:
+ 7
Explanation:
the rule of signs for addition/ subtraction
a + (- b ) = a - b
a + (+ b) = a + b
a - (+ b) = a - b
a - (- b) = a + b
Then
5 - (- 7 ) = 5 + 7
5 - (-7) = 5 + 7
because 2 negatives added together make positive.
9.4m questions
12.2m answers