we have the given equtaion:
$6000 = bu + 4000$
We are trying to find the value of $600,000 + 100bu +400,000$ given the equation above, there fore i manipulated it by adding $99bu + 396000 + 600000$ to both sides of the eqation giving me:
$600000 + 100bu + 400000 = 606000 + 99bu +396000$
After simplifying the right side i got my answer:
$600000 + 100bu + 400000 = 1002000 + 99bu$
However this was wrong and the value to $600000 + 100bu + 400000$ is equal to $1.2$ million.
Where was my reasoning flawed?