Solve the system of equations x - 2y = 3 and 7x + 6y = -45 by combining the equation

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution

Arectangular yard has area 96 square feet. if the width of the yard is 4 feet less than the length