3x-7y=21 what is the x entercept and y entercept

The x-intercept is 7

The y-intercept is - 3

To find the x-intercept set y=0 and solve for x.

3x-7y=21

3x-7 (0) = 21

3x=21

x=7

so, x-intercept is at (7,0)

to find the y-intercept set x=0 and solve for y.

3x-7y=21

3 (0) - 7y=21

-7y=21

y=-3

so, y-intercept is at (0,3)