Elise's white bread recipe uses twice as much flour as her cinnamon roll recipe. The cinnamon roll recipe uses more cups of flour than her lemon muffin recipe. Elise's oatmeal cookie recipe uses cups of flour, which is cup more than her lemon muffin recipe uses.
Write and solve an equation to find the amount of flour used in the lemon muffin recipe.
2x + y = cups of flour used in the cinnamon roll recipe
x + (y + 1) = cups of flour used in the oatmeal cookie recipe
Solve for x:
2x + y = y + (y + 1)
2x = y + 1
x = (y + 1) / 2
Therefore, the amount of flour used in the lemon muffin recipe is y cups.