Step-by-step solution: y+1=2(x-4), step one simplify the parenthases y+1=2x-8, step two move all variables to one side of the equation, 1=2x-8-y, step three move all constants to the other side, 9=2x-y. And there we have it. And also if you end with more negatives than positives just multiply everything by negative one.