Luca shows his work in finding the solution to 2−6x=5−5(x−1) . After checking his answer in the original equation, he found that it did not work. Where did he make a mistake?
Step 1, because when distributing -5(x-1), both the negatives on the -5 and -1 cancel out. The correct outcome would be positive 5, but instead Luca puts -1.
