The LCM is the lowest number that is a multiple of all three numbers. First, list the multiples of each number 8: 8, 16, 24, 32,40 48, 56, 64, 72, 80, 88, 96, 104, 112, 120 10: 10, 20, 30 40, 50, 60, 70, 80, 90, 100, 110, 120 12: 12, 24, 36, 48, 60, 72, 84, 96, 108, 120
The LCM is 120 because there is no lower number that is a multiple of all three numbers. Hope this helped!
This is incorrect reasoning because what the constant is on the right side of the equation has nothing to do with the number you are dividing by. In other words, you are dividing by 4 because that isolates the x-variable, and if it was 5x you would divide by 5. The number that you are dividing by only is determined by what number isolates x.
