There are 34 people playing on the 11 table tennis tables. How many tables are there in singles and doubles?
If x singles, 11-x doubles
2x+4(11-x)=34.
2x+44-4x=34
x=5
There are 5 singles and 6 doubles
If x singles, 11-x doubles
2x+4(11-x)=34.
2x+44-4x=34
x=5
There are 5 singles and 6 doubles