x + 2y = 5 3x + 5y = 14 Solve the system of equations. (3, 1) (7, -1)
Accepted Solution
A:
Answer:{x,y} = {3,1}Step-by-step explanation:// Solve equation [1] for the variable x [1] x = -2y + 5// Plug this in for variable x in equation [2] [2] 3•(-2y+5) + 5y = 14 [2] - y = -1// Solve equation [2] for the variable y [2] y = 1 // By now we know this much : x = -2y+5 y = 1// Use the y value to solve for x x = -2(1)+5 = 3 Solution : {x,y} = {3,1}