If 5 is added to a number the sum is tripled, the result is 31 more than the number. Find the number.

Answer 1

3(x+5) = x + 31

Solve for x.

Answer 2

3(5+x)=x+31
15+3x=x+31
15-31=x-3x
-16=-2x
Negative signs are cutted
X=16÷2
X=8