Can u answer this questions please

ONLINE ROBLEMS Problem 1 Rewriting a Literal Equation Got It? a. Solve the equation 4 = 2m - 5n for m. What are the values of m when n = -2, 0, and 2? Cb. Reasoning Solve Problem 1 by substituting x = 3 and x = 6 into the equation 10x + 5y = 80 and then solving for y in each case. Do you prefer this method or the method shown in Problem 1? Explain