4times the difference of f squared and g, increased by the sum of f squared and 2g?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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.

Which expression is equivalent to -5(3x - 6/7)