He made 3.75 gallons. There was 1/10 remaining, meaning each tenth was 6 cups. The entire thing is 10 tenths so you do 6(10) to get 60 cups. After converting to gallons by doing 60÷26, you get 3.75.
Then we will multiply both sides of the equation by 2 π : x + π ( 1 - x ) = 0 x + π - π x = 0 x ( 1 - π ) = - π / · ( - 1 ) x ( π - 1 ) = π x = π / ( π - 1 )
