kyle has been in band twicw as mant times as susan. together they have been in band a total of 21 years, how long has susan been in band? AND describe the above situation as a linear equation using x or y as a variable names to describe the unknown.

Question

anonymous · Answer

kyle is represented as Y
susan is represented as X

y=2x
2x+x=21

To find out how long susan has been in band, solve for X.

anonymous · Answer

Susan has been in the band 7 years.
Let y be Kyle and x be Susan's band participations years.
Solve the following for x and y:
{y = 2 x, y + x = 21}
y=14 and x=7