X+y-3=0

The equation you've provided, \( x + y - 3 = 0 \), is a linear equation in two variables.

To express it in a more standard form, you can rearrange it:

1. Solve for y:

   \[ y = 3 - x \]

This represents a straight line in the Cartesian plane with a slope of -1 and a y-intercept of 3.

2. Find intercepts:

   • x-intercept: Set \( y = 0 \):

     \[ 0 = 3 - x \implies x = 3 \quad \text{(x-intercept is (3, 0))} \]

   • y-intercept: Set \( x = 0 \):

     \[ y = 3 - 0 \implies y = 3 \quad \text{(y-intercept is (0, 3))} \]

3. Graph: To graph this line, you can plot the intercepts (0,3) and (3,0) on a coordinate plane and connect them with a straight line.

If you have specific questions or need more details on this equation, feel free to ask!