Two quantities a and b have a proportional relationship where a is -4 when b is -3. Create an equation to represent this relationship

Sheila wants to bake six muffins but the recipe is for 12 muffins . this means you only need half of the ingredients listed how much of the of each ingredient does she need? one cup and banana chips ,7 tablespoons oil , two eggs, 3/4 cups flour 1/4 cup walnuts show all you work and justify your answer using a baby toulmin.

50 points~ ! i have to turn this in tomarrow

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.