Respuesta :

[tex]\frac{t}{3}+3=7[/tex]

Explanation

Step 1

let t represents the number

then

a)one-third of a number would be:

[tex]\frac{1}{3}of\text{ t= }\frac{t}{3}[/tex]

b)the sum of one-third of a number t and three

[tex]\begin{gathered} one\text{ third of a number t plus 3} \\ \frac{t}{3}+3 \end{gathered}[/tex]

c) finally :

the sum of one-third of a number t and three is seven

is can replaced by equal"=",so

[tex]\frac{t}{3}+3=7[/tex]

I hope this helps you