Answer:
10 + 11 = <u><em>21</em></u>
12 + 1 = <u><em>13</em></u>
10 + 10 =<u><em>20</em></u>
20 + 29 = <u><em>49</em></u>
Hope that helps. x
The person above me is right
Answer: The answer is 1 =n and my work is in the bottom and hope this help :)
Step-by-step explanation:
5n+7=7(n+l)-2n distributive property
5n+7=7n+7-2n Combines Like Term
5n+7= 12n subtract 5n to both side
-5n -5n
7 = 7n divide 7n to both side
7 7
1=n
