Which statement describes the solution of a system of linear equations for two lines with different slopes and y-intercepts? ?

If two lines in a system of linear equations have different slopes and different y-intercepts, then they will have a single solution.

For the other cases:
If slopes are equal and y-intercepts are different: no solution

If slopes are equal and y-intercepts are equal: the equations are equivalent

If slopes are different and y-intercepts are equal: the solution is the y-intercept

9/12 is the answer because 3/4 times 3 each is 9/12