Mulitiple choice
1. (9m + 6) + (-5m -6)
4m + 12
14m + 12
14m - 12
4m
+ 12
To simplify the expression (9m + 6) + (-5m - 6), you can combine like terms.
First, distribute the negative sign to both terms inside the parentheses:
(9m + 6) + (-5m - 6) = 9m + 6 - 5m - 6
Next, combine like terms:
(9m + 6 - 5m - 6) = (9m - 5m) + (6 - 6)
Simplifying further, we have:
(9m - 5m) + (6 - 6) = 4m + 0
Since any number added to zero is still the same number, the final answer is:
4m
To simplify the expression (9m + 6) + (-5m - 6), we need to combine like terms.
First, let's remove the parentheses by distributing the negative sign to the terms inside the second set of parentheses.
(9m + 6) + (-5m - 6)
= 9m + 6 - 5m - 6
Next, we can combine the like terms. The terms with "m" are like terms, and the constant terms are like terms.
9m - 5m = 4m
6 - 6 = 0
Therefore, the expression simplifies to 4m.
So, the correct answer is 4m.