13x - 15x + 8 = 4x + 2 - 24

1. Simplify 13x-15x+8 to -2x+8

-2x+8=4x+2-24

2. Simplify 4x+2-24 to 4x-22

-2x+8=4x-22

3.add 2x to both sides

8=4x-22-2x

4.simplify 4x-22+2x to 6x-22

8=6x-22

5.add 22 to both sides

8+22=6x

6.simplify 8 +22 to 30

30=6x

7.divide both sides by 6

30/6=x

8.simplify 30/6 to 5

9. Switch sides

Final x=5

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!