I know how to graph the equations but I need help finding theconstraints

Michael Thomas, the manager of a paint store, is mixing paint for a spring sale. There are 32 units of yellow dye, 54 units of brown dye, and an unlimited supply of base paint available. Mr. Thomas plans to mix as many gallons as possible of Autumn Wheat and Harvest Brown paint. Each gallon of Autumn Wheat requires 4 units of yellow dye and 1 unit of brown dye. Each gallon of Harvest brown paint requires 1 unit of yellow dye and 6 units of brown dye. Fid the maximum number of gallons of paint that Mr. Thomas can mix.

Question

I know how to graph the equations but I need help finding theconstraints

Michael Thomas, the manager of a paint store,  is mixing paint for a spring sale. There are 32 units of yellow dye, 54 units of brown dye, and an unlimited supply of base paint available. Mr. Thomas plans to mix as many gallons as possible of Autumn Wheat and Harvest Brown paint. Each gallon of Autumn Wheat requires 4 units of yellow dye and 1 unit of brown dye. Each gallon of Harvest brown paint requires 1 unit of yellow dye and 6 units of brown dye. Fid the maximum number of gallons of paint that Mr. Thomas can mix.