Sum of three times a number and 4 is 19

x = 5

Step-by-step explanation:

To solve this, first write it as an equation where x is the number:

3x + 4 = 19

Next, isolate the variable x by subtracting 4 from both sides:

3x = 15

Finally, divide both sides by 3 to get x by itself:

x = 5