The gardeners at Middleton Place Gardens want to plant a total of 33 white and pink hydrangeas in one flower bed. In another flower bed, they want to plant 87 hydrangeas. In this bed, they want 2 times the number of white hydrangeas and 3 times the number of pink hydrangeas as in the first bed. Use a system of equations to find how many white and how many pink hydrangeas the gardeners should buy altogether.