He now has 105 because you add them up
i'm sorry, I really don't know, but Brainy or wtvr this keeps notifying me to answer a question and it's annoying.
Y= (2x-20)/ 5 then you replace y so with a simple calculation u get x than u replace x with it value to get y as simple as that
Hello Hdolly81
<u><em>The LCM of 156 and 321 is 16692</em></u>
Backup:
156: 2,2,3,13,
321: 3,107
2 * 2 * 3 * 13 * 107 = 16692
:)