Question 22621
Quantity information:
You start with 2 lbs corn, add x lbs beans, and end up with (2+x)lbs.mixture.
Value of corn = 6(2)= 12 cents
Value of beans = 9x cents
Value of mixture = 7(2+x)=14+7x cents

Equation:
  Value of corn + Value of beans = Value of Mixture
       12       +        9x     = 14+7x
                         2x     = 2
                          x     = 1 (lbs. of lima beans)

Cheers,
Stan H.