Question

12÷x+y +21÷x-y=7 9÷x+y -14÷x-y=1 solve by simultaneous equation​

Answer 1

Answer:

The given simultaneous equations are            2x + 3y = 12 ∴        3y = 12 - 2x ∴         y =  12 − 2 x 3 12−2x3     x 0 6 3 -3 y 4 0 2 6 (x,y) (0,4) (6,0) (3,2) (-3,6)        x - y = 1 ∴     y =  x - 1 x 0 2 4 5 y -1 1 3 4 (x,y) (0,-1) (2,1) (4,3) (5,4) The two lines interest at point (3,2).  ∴ x = 3 and y = 2 is the solution of the simultaneous equations 2x + 3y = 12 and x – y = 1Read more on Sarthaks.com - https://www.sarthaks.com/842494/solve-the-following-simultaneous-equations-graphically-i-2x-3y-12-x-y-1-ii-x-3y-1-3x-2y-4-0