Answer:
a= -6
Step-by-step explanation:
Please see attached picture for full solution.
I skipped a few steps while rewriting the equation into the form of y=mx+c
Here's the step-by-step working if you don't understand:
2x -3y= 6
2x= 3y +6 (+3y on both sides)
2x -6= 3y (-6 on both sides)
3y= 2x -6
y= 2/3x -2 (÷3 throughout)