7x-4x=28

Divide each term in 3x=28 by 3.

3×3=283

Cancel the common factor of 3.

Cancel the common factor.

3×3=283

Divide x by 1.

x=283

x=283

x=283

Since x=283 is a vertical line, there is no y-intercept and the slope is undefined.

Slope: Undefined

y-intercept: No y-intercept

Graph 7x-4x=28