a ten foot board has been cut in to 2 pieces, one of the board is x feet long express the other board in terms of x

10 - x

To find the length of the other board in terms of x, we know that the total length of the board is 10 feet and it has been cut into two pieces. Let's call the length of the other board y feet.

We can set up an equation based on the information given:
x + y = 10

To express the other board in terms of x, we need to solve this equation for y. We can do this by isolating y on one side of the equation.

Subtracting x from both sides of the equation:
y = 10 - x

So, the length of the other board is expressed as 10 minus the length of the first board (x).