Answer:
[tex]{ \boxed{6 + a = 13 }}[/tex]
Below
Step-by-step explanation:
Let's say that x represents the mystery number
5(x + 6) = 65
5x + 30 = 65
5x = 35
Divide both sides by 5
x = 7
We can check to see if this works
6 + 7 = 13 (the sum of 6 and x)
13 x 5 = 65
Hope this helps!
