Mr. Spears was purchasing supplies for his classroom. He had $25 to spend. Mechanical pencils and erasers come in bundles of 10. Each eraser costs $0.50. fill in the missing place in the equation to compute the cost of each mechanical pencil. (-x+0.50)=25

The equation is not correctly formulated to solve for the cost of each mechanical pencil. Let's correct it.

Let the cost of each mechanical pencil be represented by the variable "x."

The cost of each bundle of erasers, which contains 10 erasers, is $0.50. So, we can express this as 10 * $0.50 = $5.

The total amount Mr. Spears had to spend on supplies was $25.

So, the correct equation to compute the cost of each mechanical pencil would be:

x + $5 = $25