Answer:
106
Step-by-step explanation:
Given:
Thirteen fewer than three times his thinking number is 305.
Question asked:
What number is Tomás thinking ?
Solution:
Let Toma's thinking number be [tex]x[/tex]
As 13 fewer than 3 times his thinking number is 305.
The equation will be:
[tex](3 times of x) - 13 = 305[/tex]
[tex]3x - 13 = 305[/tex]
Adding both side by 13
[tex]3x = 318\\[/tex]
Dividing both side by 3
[tex]x = 106[/tex]
Thus, Tomàs was thinking of a number is 106
