The question is best answered by solving for y in both equations. This is done already in the first, but in the second we must subtract 7x from both sides, leaving us with y = -7x + 10. Because it is in slope-intercept form, we can determine its slope, -7. This is also the case for the equation y = -7x + 3. Because their slopes are the same, yet they are different lines because of the different y-intercept, they never cross in the cartesian plane. There are no solutions.
Helpful at all? :)
