To find the value of x when y is equal to 0, we can start by setting the equation y = 15 – 3x to zero:
0 = 15 – 3x
Next, we will solve for x. We can rearrange the equation:
3x = 15
Now, divide both sides by 3:
x = 15 / 3
x = 5
Therefore, the value of x when y is 0 in the equation y = 15 – 3x is 5.