Solve the equations: 2x + 3Y = 34x − y = 13

Solve the equations: 2x + 3Y = 34x − y = 13

② X = 3, we get 12x-3y = 39 (3), from (1 + 3), we get 14x = 42, x = 3. (2 points) substituting x = 3 into (2 points), we get 4 × 3-y = 13, y = - 1. (4 points). The solution of the original equations is x = 3Y = - 1. (6 points)