120:y-23=17

To solve the equation 120:y-23=17, you need to isolate the variable y on one side. Here is the step-by-step solution:

1. Start by moving the -23 to the other side of the equation by adding 23 to both sides: 120:y - 23 + 23 = 17 + 23 This simplifies to: 120:y = 40

2. Now, to isolate y, divide both sides of the equation by 120: (120:y)/120 = 40/120 This simplifies to: y = 1/3

So, the solution to the equation is y = 1/3.