l 3s+15=57
Enter Equation or Inequality

Solve the following equation

3s+15=57

Solve for s

3s + 15 = 57

Divide each side by 3

3s
3
=
  
15
3

Group constants

Group our constants 15 and 57.
subtract 15 from both sides

3s + 15 - 15 = 57 - 15

Cancel 15 on the left side:

3s = 42

Divide each side of the equation by 3

3s
3
=
  
42
3

s = 14

Final Answer


s = 14