The equation of a line is

-2x+5t=-20

what is the x-intercept of the line?

The x intercept of the line is at x = 10.

The x intercept is always the value of x when all other values are equal to 0. So in this case, we put 0 in for t and then solve.

-2x + 5t = - 20

-2x + 5 (0) = - 20

-2x = - 20

x = 10