The sum of a number and two is six.
To translate the given statement into mathematical equation, all we need to do is to identify the operation used.
Let's say that the number is x.
[tex] \large\tt x + 2 = 6[/tex]
To solve this equation, we have:
[tex] \large\tt x + 2 = 6[/tex]
[tex] \large\tt x + 2 - 2 = 6 - 2[/tex]
[tex] \large\tt x = 6 - 2[/tex]
[tex] \large\tt x = 4[/tex]
Thus, the equation is x + 2 = 6, wherein x is equal to 4.