Answer:
Part A: x = -39/4 or -9.75
Part B: y = 1/2 or .5
Step-by-step explanation:
Part C: Multiply the bottom equation by 2, obtaining 4x + 10y = -34. Subtract the top equation (4x + 4y = -37) from this equation, obtaining 6y = 3. Solving this, y = 1/2
(y = .5). Substitute this value of y into the equation 4x + 4y = -37, and then solve for x:
4x + 4(1/2) = -37
4x + 2 = -37
4x = -39, so x = -39/4 or -9.75