Well they each have 3 solutions
The solutions to 7x-7y=-6 are:
- Slope=1
- X-intercept= - 6/7=-0.85714
- Y-intercept= 6/7= 0.85714
The answers to 13x-9y=16 are:
- Slope=2.889/2.000=1.444
- X-intercept=16/13=1.23077
- Y-intercept=16/-9=1.77778
- Hope i could help you