Trina uses 1/2 cup of sugar and 3/4 cup of flour in a recipe how many cups of sugar would she need if she uses 3 cups of flour

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.