three less than triple a number is fifteen more than the same number

Question

form an equation using x as the number and solve it to find thye number for this statement.

Answer 1

Three less than triple a number:  3x - 3

Fifteen more than the same number:  x + 15

 

3x - 3 = x + 15

 

Solve for x.

 

3x - x = 15 + 3

 

2x = 18

 

x = 9

 

You test the solution.