Solve by addition method 3x 2 4y 2 7x 3ySolutionWe have

Solve by addition method 3x + 2 = 4y + 2 7x = 3y

We have 3x+2 = 4y +2 or, 3x-4y = 0…(1) and 7x= 3y or, 7x-3y = 0…(2) On multiplying the 1^st equation by - 3 and the 2^nd equation by 4, we get -9x+2y = 0…(3) and 28x - 12y = 0…(4). Now, on adding the 3^rd and the 4^th equations, we get -9x+12y +28x - 12y = 0 or 19x = 0 so that x = 0. Then , from the 1^st equation, we get 3*0 -4y = 0 or, 4y = 0 so that y = 0. Thus, the answer is x = 0 and y = 0.