X + Y = 3, 3x - 4y =-19, Find The Answer For X And Y
X + y = 3 3x - 4y =-19 Find the answer for x and y x + y = 3 ===》 y = 3- x Substitute in the below equation. 3x - 4y = -19 3x - 4(3-x) = -19 3x - 12 + 4x = - 19 7x = -19 + 12 = -7 x = -7/7 = -1 y = 3- x = 3 - (-1) = 3+1 = 4 x = -1 , y = 4